[PATCH 0/1] MR10054: mf: Don't perform preroll if we are scrubbing.

[Brendan McGrath (＠redmcg)]

Tests on Windows show that a preroll isn't requested by the media session if rate is zero. This MR changes media session to match that behaviour.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/10054