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Cloning field entries causes duplicate ckeditor fields #586

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Cloning field entries causes duplicate ckeditor fields#586
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bug

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@wesleyhuang23
wesleyhuang23
opened on May 14, 2026

Description

When cloning existing fields in craft using ckeditor creates duplicate ckeditor field entries

Steps to reproduce

  1. clone existing block in field using ckeditor
  2. see duplicate ckeditor fields render
  3. saving entry removes duplicates

Additional info

  • Craft version: 5.9.22
  • PHP version: 8.2.17
  • Database driver & version: MySQL 27.1
  • Plugins & versions: 5.5.0
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      , 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
       blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
Cloning field entries causes duplicate ckeditor fields · Issue #586 · craftcms/ckeditor · GitHub
      Skip to content
      Cloning field entries causes duplicate ckeditor fields #586
      Open
      Open
      Cloning field entries causes duplicate ckeditor fields#586
      Labels
      bug
      Description
      @wesleyhuang23
      wesleyhuang23
      opened on May 14, 2026
      Description
      When cloning existing fields in craft using ckeditor creates duplicate ckeditor field entries
      Steps to reproduce
      1. clone existing block in field using ckeditor
      2. see duplicate ckeditor fields render
      3. saving entry removes duplicates
      Additional info
      • Craft version: 5.9.22
      • PHP version: 8.2.17
      • Database driver & version: MySQL 27.1
      • Plugins & versions: 5.5.0
      Image
      Metadata
      Metadata
      Assignees
      No one assigned
        Labels
        bug
        Type
        No type
        Projects
        No projects
          Milestone
          No milestone
          Relationships
          None yet
          Development
          No branches or pull requests
          Issue actions
          
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Cloning field entries causes duplicate ckeditor fields · Issue #586 · craftcms/ckeditor · GitHub
          Skip to content
          Cloning field entries causes duplicate ckeditor fields #586
          Open
          Open
          Cloning field entries causes duplicate ckeditor fields#586
          Labels
          bug
          Description
          @wesleyhuang23
          wesleyhuang23
          opened on May 14, 2026
          Description
          When cloning existing fields in craft using ckeditor creates duplicate ckeditor field entries
          Steps to reproduce
          1. clone existing block in field using ckeditor
          2. see duplicate ckeditor fields render
          3. saving entry removes duplicates
          Additional info
          • Craft version: 5.9.22
          • PHP version: 8.2.17
          • Database driver & version: MySQL 27.1
          • Plugins & versions: 5.5.0
          Image
          Metadata
          Metadata
          Assignees
          No one assigned
            Labels
            bug
            Type
            No type
            Projects
            No projects
              Milestone
              No milestone
              Relationships
              None yet
              Development
              No branches or pull requests
              Issue actions
              
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Cloning field entries causes duplicate ckeditor fields · Issue #586 · craftcms/ckeditor · GitHub
              Skip to content
              Cloning field entries causes duplicate ckeditor fields #586
              Open
              Open
              Cloning field entries causes duplicate ckeditor fields#586
              Labels
              bug
              Description
              @wesleyhuang23
              wesleyhuang23
              opened on May 14, 2026
              Description
              When cloning existing fields in craft using ckeditor creates duplicate ckeditor field entries
              Steps to reproduce
              1. clone existing block in field using ckeditor
              2. see duplicate ckeditor fields render
              3. saving entry removes duplicates
              Additional info
              • Craft version: 5.9.22
              • PHP version: 8.2.17
              • Database driver & version: MySQL 27.1
              • Plugins & versions: 5.5.0
              Image
              Metadata
              Metadata
              Assignees
              No one assigned
                Labels
                bug
                Type
                No type
                Projects
                No projects
                  Milestone
                  No milestone
                  Relationships
                  None yet
                  Development
                  No branches or pull requests
                  Issue actions
                  
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
Cloning field entries causes duplicate ckeditor fields · Issue #586 · craftcms/ckeditor · GitHub
                  Skip to content
                  Cloning field entries causes duplicate ckeditor fields #586
                  Open
                  Open
                  Cloning field entries causes duplicate ckeditor fields#586
                  Labels
                  bug
                  Description
                  @wesleyhuang23
                  wesleyhuang23
                  opened on May 14, 2026
                  Description
                  When cloning existing fields in craft using ckeditor creates duplicate ckeditor field entries
                  Steps to reproduce
                  1. clone existing block in field using ckeditor
                  2. see duplicate ckeditor fields render
                  3. saving entry removes duplicates
                  Additional info
                  • Craft version: 5.9.22
                  • PHP version: 8.2.17
                  • Database driver & version: MySQL 27.1
                  • Plugins & versions: 5.5.0
                  Image
                  Metadata
                  Metadata
                  Assignees
                  No one assigned
                    Labels
                    bug
                    Type
                    No type
                    Projects
                    No projects
                      Milestone
                      No milestone
                      Relationships
                      None yet
                      Development
                      No branches or pull requests
                      Issue actions
                      
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Cloning field entries causes duplicate ckeditor fields · Issue #586 · craftcms/ckeditor · GitHub
                      Skip to content
                      Cloning field entries causes duplicate ckeditor fields #586
                      Open
                      Open
                      Cloning field entries causes duplicate ckeditor fields#586
                      Labels
                      bug
                      Description
                      @wesleyhuang23
                      wesleyhuang23
                      opened on May 14, 2026
                      Description
                      When cloning existing fields in craft using ckeditor creates duplicate ckeditor field entries
                      Steps to reproduce
                      1. clone existing block in field using ckeditor
                      2. see duplicate ckeditor fields render
                      3. saving entry removes duplicates
                      Additional info
                      • Craft version: 5.9.22
                      • PHP version: 8.2.17
                      • Database driver & version: MySQL 27.1
                      • Plugins & versions: 5.5.0
                      Image
                      Metadata
                      Metadata
                      Assignees
                      No one assigned
                        Labels
                        bug
                        Type
                        No type
                        Projects
                        No projects
                          Milestone
                          No milestone
                          Relationships
                          None yet
                          Development
                          No branches or pull requests
                          Issue actions
                          
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Cloning field entries causes duplicate ckeditor fields · Issue #586 · craftcms/ckeditor · GitHub
                          Skip to content
                          Cloning field entries causes duplicate ckeditor fields #586
                          Open
                          Open
                          Cloning field entries causes duplicate ckeditor fields#586
                          Labels
                          bug
                          Description
                          @wesleyhuang23
                          wesleyhuang23
                          opened on May 14, 2026
                          Description
                          When cloning existing fields in craft using ckeditor creates duplicate ckeditor field entries
                          Steps to reproduce
                          1. clone existing block in field using ckeditor
                          2. see duplicate ckeditor fields render
                          3. saving entry removes duplicates
                          Additional info
                          • Craft version: 5.9.22
                          • PHP version: 8.2.17
                          • Database driver & version: MySQL 27.1
                          • Plugins & versions: 5.5.0
                          Image
                          Metadata
                          Metadata
                          Assignees
                          No one assigned
                            Labels
                            bug
                            Type
                            No type
                            Projects
                            No projects
                              Milestone
                              No milestone
                              Relationships
                              None yet
                              Development
                              No branches or pull requests
                              Issue actions
                              
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
Cloning field entries causes duplicate ckeditor fields · Issue #586 · craftcms/ckeditor · GitHub
                              Skip to content
                              Cloning field entries causes duplicate ckeditor fields #586
                              Open
                              Open
                              Cloning field entries causes duplicate ckeditor fields#586
                              Labels
                              bug
                              Description
                              @wesleyhuang23
                              wesleyhuang23
                              opened on May 14, 2026
                              Description
                              When cloning existing fields in craft using ckeditor creates duplicate ckeditor field entries
                              Steps to reproduce
                              1. clone existing block in field using ckeditor
                              2. see duplicate ckeditor fields render
                              3. saving entry removes duplicates
                              Additional info
                              • Craft version: 5.9.22
                              • PHP version: 8.2.17
                              • Database driver & version: MySQL 27.1
                              • Plugins & versions: 5.5.0
                              Image
                              Metadata
                              Metadata
                              Assignees
                              No one assigned
                                Labels
                                bug
                                Type
                                No type
                                Projects
                                No projects
                                  Milestone
                                  No milestone
                                  Relationships
                                  None yet
                                  Development
                                  No branches or pull requests
                                  Issue actions