https://bugs.winehq.org/show_bug.cgi?id=56431
--- Comment #25 from Bartosz gang65@poczta.onet.pl --- Created attachment 78231 --> https://bugs.winehq.org/attachment.cgi?id=78231 Example of CI run, where it is possible to compare result from native (Windows) and Linux
Thanks for detail investigation of this problem. Regarding your findings in: https://gitlab.winehq.org/wine/wine/-/blob/master/dlls/comctl32/treeview.c#L...
More information about functions are available at: https://learn.microsoft.com/en-us/dotnet/api/system.windows.forms.treeview.c...
The best what you could do is try to reproduce the issue with tests, e.g.: https://gitlab.winehq.org/wine/wine/-/blob/master/dlls/comctl32/tests/treevi...
Such tests could be merged to master, and fix could be done later. On CI you could compare test result on Windows and Linux.