Status bar: audio format not updated on track change

[Basic.Master]

In Germany nearly all TV services of the public broadcasters have multiple audio tracks with different formats, e.g. two or three MP2 tracks and an AC3 track. If format information for the status bar is enabled and during playback the audio track is changed (to a track with a different format), the audio format in the status bar is NOT updated (but it should be, of course).

I can provide a short example MPEG-TS, if needed.