[PATCH v2 0/2] MR7094: winex11.drv: Flush before blitting offscreen drawable in wglFlush() and wglFinish().

[Paul Gofman (＠gofman)]

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  v2: winex11.drv: Call glFinish() when presenting offscreen drawable from wglFlush.
      winex11.drv: Flush display when presenting offcreen drawable from wglFlush / wglFinish.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/7094