Internal server error when adding a release with a non-existent release group MBID

Error:

Couldn't render template "file error - release_editor/add.tt: not found"

Stack trace:
line 18 MusicBrainz::Server::View::Default
line 304 MusicBrainz::Server
line 296 MusicBrainz::Server
line 305 MusicBrainz::Server
line 318 MusicBrainz::Server
line 363 MusicBrainz::Server

Request data:
$VAR1 = {
'query_parameters' =>

Unknown macro: { 'release-group' => '689fcd91-11d0-46aa-b7b0-fef8f3ed958e' }

,
'body_parameters' => {}
};

Host: astro

URL: https://musicbrainz.org/release/add?release-group=689fcd91-11d0-46aa-b7b0-fef8f3ed958e