[PATCH 0/6] MR1964: dxgi: Catch nested SetFullscreenState invocations.

[Stefan Dösinger]

FFXIV depends on this. It calls SetFullscreenState when it receives WM_WINDOWPOSCHANGED. Through luck the recursion aborts after two calls. The user-visible bug is that after leaving fullscreen, the game's window is still TOPMOST because we overwrite the stored pre-fullscreen window flags.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/1964