ISE on "Donation Check" tab for users with / in their names

Internal Server Error
Oops, something went wrong!

Errors:

Stack trace:
Time: 2020-04-15 23:05:33 UTC

Interface language: en

URL: https://test.musicbrainz.org/account/donation

Request data:

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