[Bug 37064] Ultima IX sometimes crashes on exit

https://bugs.winehq.org/show_bug.cgi?id=37064

--- Comment #5 from Piotr Caban  ---
Because of the DrawMenuBar change the application executes different code path.
I can reproduce the bug with following test:

HWND win = CreateWindowEx(0, L"static", L"static", WS_VISIBLE, 0, 0, 100, 100,
0, 0, 0, 0);

RECT rect = {0, 0, 100, 100};
ClipCursor(&rect);
DestroyWindow(win);
PostQuitMessage(0);
ClipCursor(NULL);

MSG msg;
printf("--> %x\n", PeekMessage(&msg, 0, 0, 0, 0));
printf("%x\n", msg.message);

It's only reproducible when winex11.drv is used. For some reason sometimes
WM_QUIT message is getting removed (it's probably a race).