OOPS occurs if log out is attempted while deleting a device

Here's the traceback from my local dev instance:

Environment:

Request Method: GET
Request URL: http://localhost:8000/device-removal/+logout

Django Version: 1.3
Python Version: 2.7.2
Installed Applications:
['django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.messages',
 'django.contrib.sessions',
 'django.contrib.sites',
 'django.contrib.admin',
 'django_openid_auth',
 'identityprovider',
 'django_configglue',
 'oauth_backend',
 'preflight',
 'gargoyle',
 'nexus',
 'saml2idp',
 'adminaudit',
 'raven.contrib.django',
 'devserver',
 'django_jenkins']
Installed Middleware:
['raven.contrib.django.middleware.SentryResponseErrorIdMiddleware',
 'identityprovider.middleware.time.TimeMiddleware',
 'identityprovider.middleware.dbfailover.DBFailoverMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'identityprovider.middleware.useraccount.UserAccountConversionMiddleware',
 'django.middleware.locale.LocaleMiddleware',
 'identityprovider.middleware.exception.LogExceptionMiddleware',
 'raven.contrib.django.middleware.Sentry404CatchMiddleware']

Traceback:
File "/home/stuartm/Python/829836-confirm-pw-to-change/.env/local/lib/python2.7/site-packages/Django-1.3-py2.7.egg/django/core/handlers/base.py" in get_response
  111. response = callback(request, *callback_args, **callback_kwargs)
File "/home/stuartm/Python/829836-confirm-pw-to-change/.env/local/lib/python2.7/site-packages/Django-1.3-py2.7.egg/django/contrib/auth/decorators.py" in _wrapped_view
  23. return view_func(request, *args, **kwargs)
File "/home/stuartm/Python/829836-confirm-pw-to-change/identityprovider/decorators.py" in _wrapped_view
  68. return view_func(request, *args, **kwargs)
File "/home/stuartm/Python/829836-confirm-pw-to-change/.env/local/lib/python2.7/site-packages/gargoyle-0.7.2-py2.7.egg/gargoyle/decorators.py" in wrapped
  26. return func(request, *args, **kwargs)
File "/home/stuartm/Python/829836-confirm-pw-to-change/identityprovider/views/utils.py" in wrapper
  23. return fn(request, *args, **kwargs)
File "/home/stuartm/Python/829836-confirm-pw-to-change/identityprovider/views/devices.py" in device_removal
  238. id=device_id, account=request.user)
File "/home/stuartm/Python/829836-confirm-pw-to-change/.env/local/lib/python2.7/site-packages/Django-1.3-py2.7.egg/django/shortcuts/__init__.py" in get_object_or_404
  113. return queryset.get(*args, **kwargs)
File "/home/stuartm/Python/829836-confirm-pw-to-change/.env/local/lib/python2.7/site-packages/Django-1.3-py2.7.egg/django/db/models/query.py" in get
  341. clone = self.filter(*args, **kwargs)
File "/home/stuartm/Python/829836-confirm-pw-to-change/.env/local/lib/python2.7/site-packages/Django-1.3-py2.7.egg/django/db/models/query.py" in filter
  550. return self._filter_or_exclude(False, *args, **kwargs)
File "/home/stuartm/Python/829836-confirm-pw-to-...

From the same page, a 404 is produced if you attempt to go to your profile page.