Select Streams shortens tracks
Steps to reproduce
When the Select Streams WOH is used with <configuration key="audio-muxing">force</configuration> and the track defined as force-target doesn't have audio, the track is muxed with audio from another track. If the target track is longer than the track the audio is coming from, the target track is shortened accordingly. This is imo unexpected behavior and leads to problems with the video editor, because selecting streams happens after cutting, so the composite video in the editor still has the original length, leading to a deselected video segment to appear in the editor at the end of the video.