Same on both the Mac and Windows versions of Mp3tag:
I start with populated metadata for Artist, Album and Title
Then when I do a Discogs search - based on Artist and Album - it finds one or more matches
I select one of the matches
In macOS (only):
Click [Merge] (no equivalent on the Windows variant)
The title gets overwritten - typically with that of a different track (of same album)
Other already-populated fields are not overwritten (AFAICT)
AFAICT there is no Merge option so it can only overwrite everything.
Is there a way to prevent the overwriting in Mp3tag-macOS > Merge ?
Is there a Merge in the Windows version (that I haven't found), or is one planned?