Rebuild Broken with 1.1

nova --debug rebuild <instance_id> <image_id>

Traceback (most recent call last):
  File "/usr/bin/nova", line 9, in <module>
    load_entry_point('python-novaclient==2.5.7', 'console_scripts', 'nova')()
  File "/usr/lib/pymodules/python2.6/novaclient/shell.py", line 902, in main
    OpenStackShell().main(sys.argv[1:])
  File "/usr/lib/pymodules/python2.6/novaclient/shell.py", line 171, in main
    args.func(args)
  File "/usr/lib/pymodules/python2.6/novaclient/shell.py", line 647, in do_rebuild
    server.rebuild(image)
  File "/usr/lib/pymodules/python2.6/novaclient/servers.py", line 142, in rebuild
    self.manager.rebuild(self, image)
  File "/usr/lib/pymodules/python2.6/novaclient/servers.py", line 357, in rebuild
    self._action('rebuild', server, {'imageRef': base.getid(image)})
  File "/usr/lib/pymodules/python2.6/novaclient/servers.py", line 453, in _action
    body={action: info})
  File "/usr/lib/pymodules/python2.6/novaclient/client.py", line 114, in post
    return self._cs_request(url, 'POST', **kwargs)
  File "/usr/lib/pymodules/python2.6/novaclient/client.py", line 98, in _cs_request
    **kwargs)
  File "/usr/lib/pymodules/python2.6/novaclient/client.py", line 81, in request
    raise exceptions.from_response(resp, body)
novaclient.exceptions.OpenStackException: invalid literal for int() with base 10: 'c200d77e-fda7-42e4-a469-5c79c58954e9' (HTTP 500)