Cannot join a new group chat
It is similar as #7854 (closed), but I don't know how to operate .ui files. When trying to open "Join Group Chat" dialog, I get:
Traceback (most recent call last):
File "/home/matej/archiv/knihovna/repos/gajim/src/roster_window.py", line 3932, in on_join_gc_activate
dialogs.JoinGroupchatWindow(account)
File "/home/matej/archiv/knihovna/repos/gajim/src/dialogs.py", line 2454, in __init__
entry = self.server_comboboxentry.child
AttributeError: 'ComboBox' object has no attribute 'child'