pinax/django-user-accounts — pull request #160 by mikeurbanski (2014-12-25 16:47:23+00:00)
Title: Added `user` and `inviter` to admin `raw_id_fields`

Loading all users into a drop-down list is impractical when you have thousands of users. It makes sense to add user refs to raw_id_fields to reduce overhead and use the full power of the admin to find/select users.