Play as audio: fix next reopening video player
Flags are not applied to the media in mediaList but to the media from medialibrary, once out of playIndex, it doesn't have any flags anymore. When changing media, it triggers a doUpdate in the audio player that triggers a switchToVideo, if the media can switch to video and doesn't have the MEDIA_FORCE_AUDIO flag, it switches back to video
This applies time from medialibrary to media from mediaList.
This fixes a regression introduced with ea39df7b and follow up 50402c90