sampsyo/beets — pull request #633 by fortes (2014-03-26 19:05:27+00:00)
Title: Only use primary artist aliases. Fixes #632.

MusicBrainz will send down various artist aliases that may not be the primary
(e.g. the previous name for a group). Only use an alias for the artist if it is
the primary alias in one of the import locales.