Repeated history in groupchat on reconnect
When I reconnect to groupchat after a short disconnection, I receive a full (predefined number of lines of) history of that groupchat, even though most of the lines have been already printed to that window before, while I was still connected. This means I seem to travel back in time and get to read them all over again.
Expected behaviour: only the lines that I missed while I was disconnected (dated after the last received message in this window) should be printed.