This should fix the following random failure:

Traceback (most recent call last):
  File "neo/tests/functional/__init__.py", line 140, in start
    execfile(command, {"__name__": "__main__"})
  File "./neoadmin", line 22, in <module>
    main()
  File "neo/scripts/neoadmin.py", line 66, in main
    app.run()
  File "neo/admin/app.py", line 103, in run
    self.em.poll(1)
  File "neo/lib/event.py", line 100, in poll
    to_process.process()
  File "neo/lib/connection.py", line 532, in process
    self._handlers.handle(self, packet)
  File "neo/lib/connection.py", line 158, in handle
    self._handle(connection, packet)
  File "neo/lib/connection.py", line 174, in _handle
    handler.packetReceived(connection, packet)
  File "neo/lib/handler.py", line 93, in packetReceived
    self.dispatch(conn, packet)
  File "neo/admin/handler.py", line 142, in dispatch
    super(MasterEventHandler, self).dispatch(conn, packet)
  File "neo/lib/handler.py", line 57, in dispatch
    method(conn, *args)
  File "neo/admin/handler.py", line 156, in sendPartitionTable
    self.app.pt.load(ptid, row_list, self.app.nm)
  File "neo/lib/pt.py", line 219, in load
    assert node is not None
AssertionError

git-svn-id: https://svn.erp5.org/repos/neo/trunk@2680 71dcc9de-d417-0410-9af5-da40c76e7ee4