Load http://musicbrainz.org/artist/86be18cc-3ca1-4a59-bbc7-af9c5b66d0fe/split then log out, it takes you back to the page and gives you an internal server error like

Oops, something went wrong!

Error:

Caught exception in MusicBrainz::Server::Controller::Artist->split "Can't call method "has_confirmed_email_address" on an undefined value at lib/MusicBrainz/Server/Controller.pm line 130."
Stack trace:
line 130 MusicBrainz::Server::Controller
line 661 MusicBrainz::Server::Controller::Artist
line 330 MusicBrainz::Server
line 304 MusicBrainz::Server
line 331 MusicBrainz::Server
line 345 MusicBrainz::Server
line 390 MusicBrainz::Server
Request data:

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

Host: astro

URL: http://musicbrainz.org/artist/86be18cc-3ca1-4a59-bbc7-af9c5b66d0fe/split