See e.g. http://musicbrainz.org/edit/15627133. It is hard to see what is being changed by that edit. It would be far better if the old value would be shown!
Agreed to fix within 3 months in #musicbrianz-devel and through the scheduling game.
In review at http://codereview.musicbrainz.org/r/1814/
Won't make this release, blocked by MBS-211 discussions.
I will change my approach to store old data inside the edit. This is no longer blocked by MBS-211.
Agreed to fix within 3 months by http://scheduling.ocharles.org.uk/results and http://chatlogs.musicbrainz.org/musicbrainz-devel/2012/2012-06/2012-06-11.html
This is in review at http://codereview.musicbrainz.org/dashboard/
This is available for testing on http://test.musicbrainz.org/