raceback (most recent call last):
  File "/usr/share/gajim/src/statusicon.py", line 116, in on_status_icon_left_clicked
    self.on_left_click()
  File "/usr/share/gajim/src/statusicon.py", line 414, in on_left_click
    self.handle_first_event()
  File "/usr/share/gajim/src/statusicon.py", line 420, in handle_first_event
    gajim.interface.handle_event(account, jid, event.type_)
  File "/usr/share/gajim/src/gui_interface.py", line 2385, in handle_event
    self.roster.open_event(account, fjid, event)
  File "/usr/share/gajim/src/roster_window.py", line 1857, in open_event
    form_node=data[9])
  File "/usr/share/gajim/src/dialogs.py", line 2783, in __init__
    self.prepare_widgets_for(self.action)
  File "/usr/share/gajim/src/dialogs.py", line 2888, in prepare_widgets_for
    self.conversation_textview.print_real_text(self.message)
  File "/usr/share/gajim/src/conversation_textview.py", line 1382, in print_real_text
    self.detect_and_print_special_text(text, text_tags, graphics=graphics)
  File "/usr/share/gajim/src/conversation_textview.py", line 1025, in detect_and_print_special_text
    self.print_special_text(special_text, other_tags, graphics=graphics)
  File "/usr/share/gajim/src/conversation_textview.py", line 1081, in print_special_text
    text_is_valid_uri and not is_xhtml_link:
UnboundLocalError: local variable 'is_xhtml_link' referenced before assignment