[PATCH 0/1] MR6248: winewayland: Add missing default surface fallback in WindowPosChanging().

[Aida Jonikienė]

This fixes a blank window content issue that happens even with basic Wine programs.

Fixes: b9879d5adc1 ("winewayland: Remove now unnecessary WindowPosChanging checks.")

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https://gitlab.winehq.org/wine/wine/-/merge_requests/6248