To avoid artists with only one or a few tracks to show up in the artist listings, we have the "Group compilation albums together" option. I have found that there's another way such single-song artists can show up in the artist listing. Consider an album witht the following tags:

Album: Best of Artist A

Track:     Artist:
------     -------
Track01    Artist A
Track02    Artist A
Track03    Artist A & Artist B
Track04    Artist A
Track05    Artist A
...

Now, clearly the artist of this hypothetical album is "Artist A", and it is not a compilation album. To make sure that SS not treat it as a compilation (listing it under "Various Artists"), I have tagged the (flac) files with "ALBUMARTIST = Artist A" and "COMPILATION = 0".

Here's the problem: doing this will make "Artist A & Artist B" show up in the artist listing, which is not good. It would be better if this album was treated in a similar way compilations are, i.e. the single track artists should not show up in artist listings.