[Bug 57465] 9.22 regression: after unmaximizing some apps windows are unmanageable

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=57465

--- Comment #7 from Rémi Bernon  ---
Thanks, I was able to reproduce the issue I think. It still seems to be an WM
bug, where KWin gets confused and believes the window starts maximized when it
shouldn't, and then believes it's already maximized when you click on the
button and doesn't send the corresponding unmaximize event.

The changes in https://gitlab.winehq.org/wine/wine/-/merge_requests/6909 are
fixing the issue for me, and the window doesn't start in the maximized state,
but can then be changed back and forth without issues. Could you confirm
whether it fixes the problem for you as well?