Re: [PATCH v2 0/3] MR9646: mf/tests: Scrubbing tests

[Brendan McGrath (＠redmcg)]

v2:
- Modify `test_seek_clock_sink_vtbl` to be refcounted (and update existing tests)
- Rebase on to `master`

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https://gitlab.winehq.org/wine/wine/-/merge_requests/9646#note_125117