from http://musicbrainz.org/release/208d60ae-382c-3ed1-a573-65b080862e45/edits :

Internal Server Error
Oops, something went wrong!

Error:

Caught exception in MusicBrainz::Server::Controller::Release->edits "Can't call method "release" on an undefined value at lib/MusicBrainz/Server/Edit/Medium/MoveDiscID.pm line 89."
Stack trace:
line 89 MusicBrainz::Server::Edit::Medium::MoveDiscID
line 488 MusicBrainz::Server::Data::Edit
line 42 MusicBrainz::Server::Controller::Role::EditListing
line 18 MusicBrainz::Server::Controller::Role::EditListing
line 322 MusicBrainz::Server
line 322 MusicBrainz::Server
line 322 MusicBrainz::Server
line 286 MusicBrainz::Server
Request data:

$VAR1 = {
'query_parameters' => {},
'body_parameters' => {}
};

URL: http://musicbrainz.org/release/208d60ae-382c-3ed1-a573-65b080862e45/edits