[PATCH 0/1] MR8541: server: Keep owned mutex syncs alive until abandoned.

[Rémi Bernon]

Fixes: 672c3a561f5cd1cd6937c702fe2fe05397f41375

Instead of https://gitlab.winehq.org/wine/wine/-/merge_requests/8538, with test case derived from @tclem repro case, thanks!

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https://gitlab.winehq.org/wine/wine/-/merge_requests/8541