Content with multiple authors sets author name for all further tracks and albums

Steps to reproduce

1. Upload album (probably works with track too) with multiple authors eg. "donGURALesko & Matheo - Milosc, Szmaragd I Krokodyl"
2. Upload next album with same primary author, but solo or another secondary author eg. "donGuralesko - Latające Ryby"

What happens?

Both albums and all tracks shows as authored by "donGURALesko & Matheo" (first uploaded track's author)

What is expected?

Tracks keeps their authorship, which is separate from album (separate album and track authors) and tracks from first upload are authored by "donGURALesko & Matheo" and from second by "donGuralesko", also containing features, producers and other coauthorship from Musicbrainz - each track with separate authors, not whole album with the same

Context

Funkwhale version(s) affected: 0.21, 0.20.1 and probably previous versions

Screenshots:

Example author page on funkwhale: The same page on musicbrainz: