fix(TreeSelect): preserve disabled child selection

[zombieJ]

Summary

• preserve selected disabled child nodes when their parent is checked with SHOW_PARENT
• add a controlled TreeSelect regression test for the disabled-child scenario

Root cause

SHOW_PARENT filtered every child whose parent was selected without considering whether the child itself was disabled. In a controlled TreeSelect, the emitted value therefore dropped the disabled child and cleared its selection on the next render.

Validation

• ut test --runInBand (184 tests passed)
• ut tsc
• ut lint (0 errors; 6 existing warnings)

Related to ant-design/ant-design#16096

Summary by CodeRabbit

• Bug 修复

  • 优化 SHOW_PARENT 选择策略：勾选父节点时，已选中的禁用子节点会继续保留。
  • 受控 TreeSelect 中将同时正确显示父节点及其禁用子节点，避免已选内容意外丢失。

• 测试

  • 新增相关场景测试，覆盖父节点选择与禁用子节点保留行为。

[gemini-code-assist]

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Project	Deployment	Actions	Updated (UTC)
tree-select	Ready	Preview	Aug 4, 2026 7:40am

[coderabbitai]

Walkthrough

本次变更调整 SHOW_PARENT 策略，使禁用的当前实体继续保留，并新增受控 TreeSelect 测试，验证勾选父节点后同时保留父节点和禁用子节点。

Changes

SHOW_PARENT 保留逻辑

Layer / File(s)	Summary
保留禁用选中值与受控场景验证 src/utils/strategyUtil.ts, tests/Select.checkable.spec.tsx	SHOW_PARENT 检查当前实体的禁用状态。受控 TreeSelect 测试验证勾选父节点后仍保留禁用子节点。

Estimated code review effort: 2 (简单) | ~10 分钟

Poem

我是小兔，轻敲选择树，
父节点勾选，子节点不迷路。
禁用叶子稳稳留下，
SHOW_PARENT 逻辑清楚。
两个选中项，一起跳舞。

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	标题准确概括了修复内容，明确说明了保留 TreeSelect 中禁用子节点选择。

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch test-disabled-child-selection

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[github-actions]

React Doctor found no new issues. 🎉

_{Reviewed by React Doctor for commit b7c7af1.}

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.84%. Comparing base (f33bc66) to head (b7c7af1).

Additional details and impacted files

@@ Coverage Diff @@## master #681 +/- ##
=======================================
Coverage 99.84% 99.84% =======================================
Files 17 17 Lines 629 633 +4 Branches 178 181 +3 =======================================
+ Hits 628 632 +4 
Misses 1 1 

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[github-actions]

❌ Deploy failed

	❌ Failed
	🔗 Previewhttps://react-component-tree-select-preview-pr-681.surge.sh(may be unavailable)
	📝 Commit	b7c7af1
	🪵 Logs	View logs

📋 Build log (last lines)

npm error
npm error Could not resolve dependency:
npm error peer eslint@"^3 || ^4 || ^5 || ^6 || ^7 || ^8 || ^9.7" from eslint-plugin-react@7.37.5
npm error node_modules/eslint-plugin-react
npm error dev eslint-plugin-react@"^7.37.5" from the root project
npm error eslint-plugin-react@"^7.32.2" from @umijs/fabric@4.0.1
npm error node_modules/@umijs/fabric
npm error @umijs/fabric@"^4.0.0" from rc-test@7.1.3
npm error node_modules/rc-test
npm error dev rc-test@"^7.1.3" from the root project
npm error
npm error Conflicting peer dependency: eslint@9.39.5
npm error node_modules/eslint
npm error peer eslint@"^3 || ^4 || ^5 || ^6 || ^7 || ^8 || ^9.7" from eslint-plugin-react@7.37.5
npm error node_modules/eslint-plugin-react
npm error dev eslint-plugin-react@"^7.37.5" from the root project
npm error eslint-plugin-react@"^7.32.2" from @umijs/fabric@4.0.1
npm error node_modules/@umijs/fabric
npm error @umijs/fabric@"^4.0.0" from rc-test@7.1.3
npm error node_modules/rc-test
npm error dev rc-test@"^7.1.3" from the root project
npm error
npm error Fix the upstream dependency conflict, or retry
npm error this command with --force or --legacy-peer-deps
npm error to accept an incorrect (and potentially broken) dependency resolution.
npm error
npm error
npm error For a full report see:
npm error /home/runner/.npm/_logs/2026-08-04T07_41_30_188Z-eresolve-report.txt
npm error A complete log of this run can be found in: /home/runner/.npm/_logs/2026-08-04T07_41_30_188Z-debug-0.log

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[gemini-code-assist]

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