HTTP_ACCEPT: 'text/html,application/xhtml+xml,application/xml;q=0.9
2012/11/07 22:15:58 [error] 3769#0: *13911 FastCGI sent in stderr: "Error - <type 'exceptions.TypeError'>: 'ImmutableMultiDict' objects are immutable
URL: http://example.org/?page=2
File '/srv/example.org/mediagoblin/lib/python2.6/site-packages/Paste-1.7.5.1-py2.6.egg/paste/exceptions/errormiddleware.py', line 144 in __call__
  app_iter = self.application(environ, sr_checker)
File '/srv/example.org/mediagoblin/lib/python2.6/site-packages/Paste-1.7.5.1-py2.6.egg/paste/urlmap.py', line 203 in __call__
  return app(environ, start_response)
File '/srv/example.org/mediagoblin/lib/python2.6/site-packages/Beaker-1.6.4-py2.6.egg/beaker/middleware.py', line 155 in __call__
  return self.wrap_app(environ, session_start_response)
File '/srv/example.org/mediagoblin/mediagoblin/app.py', line 221 in __call__
  return self.call_backend(environ, start_response)
File '/srv/example.org/mediagoblin/mediagoblin/app.py', line 208 in call_backend
  response = controller(request)
File '/srv/example.org/mediagoblin/mediagoblin/decorators.py', line 103 in wrapper
  return controller(request, page=page, *args, **kwargs)
File '/srv/example.org/mediagoblin/mediagoblin/views.py', line 36 in root_view
  'pagination': pagination})
File '/srv/example.org/mediagoblin/mediagoblin/tools/response.py', line 24 in render_to_response
  render_template(request, template, context),
File '/srv/example.org/mediagoblin/mediagoblin/tools/template.py', line 88 in render_template
  rendered = template.render(context)
File '/srv/example.org/mediagoblin/lib/python2.6/site-packages/Jinja2-2.6-py2.6.egg/jinja2/environment.py', line 894 in render
  return self.environment.handle_exception(exc_info, True)
File '/srv/example.org/mediagoblin/mediagoblin/templates/mediagoblin/root.html', line 20 in top-level template code
  {% from "mediagoblin/utils/object_gallery.html" import object_gallery %}
File '/srv/example.org/mediagoblin/mediagoblin/templates/mediagoblin/base.html', line 43 in top-level templat