[PATCH 0/1] MR4916: winex11: Sync with gdi_display before closing the threads display.

[Rémi Bernon]

This is a synchronization point that was missed in a6bc5f34b87393e04ff46659f518f2e7094cc7e4, as XCloseDisplay implies the destruction any every remaining top-level window.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/4916