I installed mopidy-2.2.2 on gentoo linux.
mpd takes care of multiple genre tags properly. But, mopidy just concatenates them into one genre tag by inserting semicolons between them.
For example, aaa.mp3 has the following tags.
mpd would show aaa.mp3 in both rock and ballad genres.
mopidy shows aaa.mp3 in “rock; ballad” genre.
Is this a bug?