It is possible to create a situation, where a track is selected for editing, but editing the tags also changes the tags of a file on the left pane.

To reproduce:

• Select a track with a matched file on the right
• Without loosing the selection, move the file from the right to the left pane of unmatched files
• Edit the metadata (e.g. title) of the track

Result: The file on the left also gets its metadata changed