Artist equivalence: Codeine the 90ies NYC slowcore band is not Codeine the trap band or whatever other bands of that name

Still unresolved and MusicBrainz and Allmusic don’t have all this wrong Codeine stuff mixed into the slowcore band, so where the heck is this happening?

Seems similar to here where artists get mixed up but it’s apparently not MusicBrainz or Allmusic doing it: