POSSIBLE MUSIC BUG: Duplicate artist entries for same artist

[hardcopy]

Investigating further, it can't be that, for The Beatles' albums I also have a lot of tags for example:

Code:

ALBUM ARTIST=The Beatles
ALBUM_ARTIST=The Beatles
ALBUMARTIST=The Beatles
ALBUMARTIST_CREDIT=The Beatles
ALBUMARTISTSORT=Beatles, The

And I do _not_ have this issue with The Beatles, I just ran "Replace All Metadata" on the beatles and this issue did not occur. So, I don't know what's happening, it's not the file tags.