[PATCH v2 0/2] MR2308: mfreadwrite/reader: Release device manager in source_reader_release.

[Adrian Thiele (＠athiele)]

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  v2: mfreadwrite/reader: Release device manager in source_reader_release.
      mfreadwrite/tests: Check refcount of device manager after release.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/2308