error occurs when scrolling in history
Traceback (most recent call last): File "/usr/share/gajim/src/history_window.py", line 328, in on_calendar_month_changed month, days_in_this_month, self.account) File "/usr/share/gajim/src/common/logger.py", line 545, in get_days_with_logs jid_id = self.get_jid_id(jid) File "/usr/share/gajim/src/common/logger.py", line 198, in get_jid_id if jid.find('/') != -1: # if it has a / AttributeError: 'NoneType' object has no attribute 'find'