Re: [PATCH v2 0/7] MR9651: dmsynth: More robust sink write and render scheduling

[Anton Baskanov (＠baskanov)]

v2:
- Fix DirectSound buffer leak in `synth_sink_activate` (fixes the `dmime` test failure).
- Clear the buffer notifications before closing the event handle.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/9651#note_124528