metabrainz/musicbrainz-server — pull request #85 by mwiencek (2013-02-04 08:20:30+00:00)
Title: MBS-5547: Relationship Editor: Can't unselect orchestra type

Adds a blank
so that it can be unselected. Very basic manual testing.

http://tickets.musicbrainz.org/browse/MBS-5547