Inbound call and hangup url

[emamirazavi]

I've installed lasted version of plivo from githup edited several months ago for last time, and new FS, i note that on hanging up, in inbound socket calls, hang up url is not called!
Even i have this (2014-08-22 01:45:51,875 plivo-outbound[31213]: INFO: (1) Event: channel b481c118-8095-4bd4-8a1e-69eceb7c49d4 has hung up (NORMAL_CLEARING)) in log file, but my hangup url is not called!!!
Have you got any idea?!
Is this new in PlivoOutboundEventSocket.on_channel_hangup_complete method: self._action_queue.put_nowait(Event())
Does this method call hangup url?