[PATCH 0/1] MR10324: win32u: Fix deadlock when setting hdc_src to the window's self DC.

[Zhao Yi (＠Zhaoyi)]

Supersed !9180 and !9177

When hdc_src is the window's self DC, there is no need to call AlphaBlend. same as when hdc_src is NULL.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/10324