http://musicbrainz.org/edit/18443794 and http://musicbrainz.org/edit/18500655 both change the catalog number of http://musicbrainz.org/release/bf553f18-953d-47f3-bc71-63dc65099acd.
Current result:
Expected results:
In review at http://codereview.musicbrainz.org/r/2248/diff/#index_header
In review at http://codereview.musicbrainz.org/r/2248/diff/#index_header