Canceling any edit (like a merge edit) redirects to http://musicbrainz.org/. I have 2 problems with this:
1. After the redirect, navigating back in history 1 step (to /release/merge or some such) immediately redirects back to where you came from. This is frustrating because you have to manually navigate 2 steps back to get to where you were. Is it because some non-HTTP redirect?
2. I would much prefer if the redirect wasn't to http://musicbrainz.org/ to begin with. If the canceled edit was a merge between releases or recordings, redirect to the common release, release group or artist, in that order of priority. Only there is no sane "common denominator" redirect to http://musicbrainz.org/