AttributeError at /admin/edittest/mymodel/

'tuple' object has no attribute 'ordered'
Request Method: GET
Request URL: http://localhost:8081/admin/edittest/mymodel/?p=2
Django Version: 1.3 pre-alpha SVN-13863
Exception Type: AttributeError
Exception Value:
'tuple' object has no attribute 'ordered'
Exception Location: /home/tuttle/tmp/editable-test/django-trunk/django/forms/models.py in get_queryset, line 476
Python Executable: /usr/bin/python
Python Version: 2.6.4
Python Path: ['/home/tuttle/tmp/editable-test/editabletest', '/home/tuttle/tmp/editable-test/django-trunk', '/usr/lib/python2.6', '/usr/lib/python2.6/plat-linux2', '/usr/lib/python2.6/lib-tk', '/usr/lib/python2.6/lib-old', '/usr/lib/python2.6/lib-dynload', '/usr/lib/python2.6/dist-packages', '/usr/lib/python2.6/dist-packages/PIL', '/usr/lib/python2.6/dist-packages/gst-0.10', '/usr/lib/pymodules/python2.6', '/usr/lib/pymodules/python2.6/gtk-2.0', '/usr/lib/python2.6/dist-packages/wx-2.8-gtk2-unicode']
Server time: Sun, 19 Sep 2010 14:27:17 -0500

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