JesseObrien/warden — comment on commit a8aee1a52666b7a2c65f5f4a9ebba074628623b2
File: classes/warden/model/user.php line 542
By dre1080:

See Model_User::_event_before_insert(), if it saves then it it will cause a mysql duplicate key error, cause it will save the record before the actual Orm::save(), meaning it will try to save the same new record twice