django-mptt/django-mptt — pull request #263 by gaqzi (2013-07-10 12:00:46+00:00)
Title: Fix exception raised in MPTTAdminForm

`exclude` requires a kwarg to filter on.

When I tried to view a model that used MPTTAdminForm I got an `AttributeError 'Folder' object has no attribute 'split'`. Looking at the history of that code it seems like a refactor accidentally introduced a bug.

Tested with Django 1.5.1.