pinax/django-user-accounts — pull request #46 by paltman (2012-08-31 23:57:30+00:00)
Title: Set AccountDeletion.user to None

This is required to avoid a 'Key is not present in
auth_user table' exception. I suspect the on_delete
directive is not handling this because the deletion
object is an instance in memory versus getting
selected for deletion.