Stack trace:
line 234 MusicBrainz::Server::Form::ReleaseEditor::Tracklist
line 105 MusicBrainz::Server::Form
line 524 MusicBrainz::Server::Wizard
line 238 MusicBrainz::Server::Wizard
line 173 MusicBrainz::Server::Wizard
line 388 MusicBrainz::Server::Wizard
line 132 MusicBrainz::Server::Wizard
line 91 MusicBrainz::Server::Wizard::ReleaseEditor
line 17 MusicBrainz::Server::Controller::ReleaseEditor::Edit
line 258 MusicBrainz::Server
Request data:

$VAR1 = {
'query_parameters' => {},
'body_parameters' => {
'artist_credit.names.0.name' => 'Derrick May',
'packaging_id' => '',
'next' => "Next \x

",
'date.month' => '6',
'release_group_id' => '193786',
'labels.0.catalog_number' => 'TMT-2DB ',
'release_group.name' => 'Innovator',
'artist_credit.names.0.artist.id' => '21498',
'labels.0.deleted' => '0',
'country_id' => '221',
'barcode_confirm' => '1',
'labels.0.name' => 'R & S Records UK',
'date.year' => '2008',
'script_id' => '28',
'status_id' => '1',
'date.day' => '2',
'name' => 'Innovator',
'gc-keepuppercase' => 'on',
'barcode' => '505527470011',
'artist_credit.names.0.join_phrase' => '',
'labels.0.label_id' => '392',
'wizard_session_id' => '0.791014376078373',
'language_id' => '120',
'comment' => '',
'gc-mode' => 'English',
'artist_credit.names.0.artist.name' => 'Derrick May',
'annotation' => ''
}
};