AttributeError: 'ClusterClient' object has no attribute 'loseConnection'

2014-02-15 16:31:25-0500 [HTTPPageGetter,client] Unhandled Error
        Traceback (most recent call last):
          File "/usr/lib/python2.7/dist-packages/twisted/internet/tcp.py", line 299, in connectionLost
            protocol.connectionLost(reason)
          File "/usr/lib/python2.7/dist-packages/twisted/web/client.py", line 204, in connectionLost
            self.factory._disconnectedDeferred.callback(None)
          File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 382, in callback
            self._startRunCallbacks(result)
          File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 490, in _startRunCallbacks
            self._runCallbacks()
        --- <exception caught here> ---
          File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 577, in _runCallbacks
            current.result = callback(current.result, *args, **kw)
          File "/usr/lib/python2.7/dist-packages/provisioningserver/rpc/clusterservice.py", line 163, in _update_connections
            self._drop_connections(connections_established - connections_desired)
          File "/usr/lib/python2.7/dist-packages/provisioningserver/rpc/clusterservice.py", line 176, in _drop_connections
            self.connections[address].loseConnection()
        exceptions.AttributeError: 'ClusterClient' object has no attribute 'loseConnection'