[Bug 48732] How to Survive crashes on start (fullscreen mode)

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48732

--- Comment #7 from Béla Gyebrószki  ---
(In reply to Gabriel Ivăncescu from comment #4)
> Created attachment 66627 [details]
> Test workaround
>
> Does this patch help? It should avoid the call if the window has no owner to
> begin with.

FWIW, the patch fixes the crash for me.