polari hangup due to some problem with the chat history
I had the problem that polari stopped responding after startup, and was completely unusable.
I managed to pinpoint it to a file located in /home/$USER/.local/share/TpLogger/logs/idle_irc_some_username0/chatrooms/#random_chatroom/20180208.log
I was able to minimize the file to still trigger this bug. Seems to be some issue with url handling:
<?xml version='1.0' encoding='utf-8'?>
<?xml-stylesheet type="text/xsl" href="log-store-xml.xsl"?>
<log>
<message time='20180208T19:09:36' id='*' name='*' token='' isuser='false' type='normal'>https://example.com/(in_polish,_will_be_change_to_english)</message>
</log>