Highlight events sometimes cause a TB
When I'm highlighted in a groupchat upon middle-clicking on gajim's icon I get a TB:
/.../gajim-git/src/message_window.py:241: GtkWarning: Can't set a parent on widget which has a parent
self.notebook.append_page(control.widget, tab_label_box)
Traceback (most recent call last):
File "/.../gajim-git/src/systray.py", line 320, in on_clicked
self.on_middle_click()
File "/.../gajim-git/src/systray.py", line 311, in on_middle_click
self.handle_first_event()
File "/.../gajim-git/src/systray.py", line 304, in handle_first_event
gajim.interface.handle_event(account, jid, event.type_)
File "gajim.py", line 2132, in handle_event
self.roster.on_groupchat_maximized(None, jid, account)
File "/.../gajim-git/src/roster_window.py", line 2732, in on_groupchat_maximized
self.remove_groupchat(jid, account)
File "/.../gajim-git/src/roster_window.py", line 760, in remove_groupchat
if contact.is_groupchat():
AttributeError: 'NoneType' object has no attribute 'is_groupchat'