public bool TryFindByCode(ulong code, out DwarfAbbreviationItem item) failed

[Albert-Coder]

in DwarfAbbreviation.cs line 87;

 `public bool TryFindByCode(ulong code, out DwarfAbbreviationItem item)
 {
 item = null;
 if (code == 0)
 {
 return `false;
 }

 code--;

 if (_mapItems.Count > 0)
 {
 return _mapItems.TryGetValue(code, out item);
 }

 if (code < int.MaxValue && (int)code < _items.Count)
 {
 item = _items[(int) code];
 return true;
 }

 item = null;
 return false;
 }`

I found sometimes it failed at return _mapItems.TryGetValue(code, out item);
Then I fixed below; I do not konw if you have the same problem;

 `public` bool TryFindByCode(ulong code, out DwarfAbbreviationItem item)
 {
 item = null;
 if (code == 0)
 {
 return false;
 }

 //no need to minus 1
 //code--;

 if (_mapItems.Count > 0)
 {
 return _mapItems.TryGetValue(code, out item);
 }

 //if _mapItems is empty, try _items;
 if (code < int.MaxValue && (int)code <= _items.Count)
 {
 item = _items[(int) code - 1];
 return true;
 }

 item = null;
 return false;
 }