Groups do not have legal names
The fact that there are separate pages on facebook and discogs made me decide to change the relation into subgroup rather than merge it or remove the link at all.
Merging would give multiple discogs/facebook id's on 1 artist (You do not want to unlink completely)
remove the link between both would look like no relation, and here is a high relationship (alias)
So in my opinion this case should not follow the styleguide