TB when right-clicking on a groupchat-banner
Traceback (most recent call last):
File "/home/florian/devel/gajim-git/src/chat_control.py", line 353, in _on_banner_eventbox_button_press_event
self.parent_win.popup_menu(event)
File "/home/florian/devel/gajim-git/src/message_window.py", line 717, in popup_menu
menu = self.get_active_control().prepare_context_menu()
File "/home/florian/devel/gajim-git/src/groupchat_control.py", line 683, in prepare_context_menu
if c.affiliation not in ('owner', 'admin'):
AttributeError: 'NoneType' object has no attribute 'affiliation'