Traceback (most recent call last):
File "/usr/share/gajim/src/chat_control.py", line 2976, in _on_message_tv_buffer_changed
self.begin_e2e_negotiation()
File "/usr/share/gajim/src/chat_control.py", line 3228, in begin_e2e_negotiation
self.session.negotiate_e2e(False)
File "/usr/share/gajim/src/common/stanza_session.py", line 719, in negotiate_e2e
self.send(request)
File "/usr/share/gajim/src/common/stanza_session.py", line 122, in send
self.conn.send_stanza(msg)
File "/usr/share/gajim/src/common/connection.py", line 2212, in send_stanza
self.connection.send(stanza)
File "/usr/lib/python2.7/dist-packages/nbxmpp/dispatcher_nb.py", line 576, in send
stanza_copy = copy.deepcopy(stanza)
File "/usr/lib/python2.7/copy.py", line 190, in deepcopy
y = _reconstruct(x, rv, 1, memo)
File "/usr/lib/python2.7/copy.py", line 334, in _reconstruct
state = deepcopy(state, memo)
File "/usr/lib/python2.7/copy.py", line 163, in deepcopy
y = copier(x, memo)
File "/usr/lib/python2.7/copy.py", line 257, in _deepcopy_dict
y[deepcopy(key, memo)] = deepcopy(value, memo)
File "/usr/lib/python2.7/copy.py", line 174, in deepcopy
y = copier(memo)
TypeError: 'Node' object is not callable