And modify the tests to work, by adding the <x/> node in all join presences

tests/end_to_end/scenarios/get_irc_connection_info.py

@@ -4,7 +4,7 @@ scenario = (
     send_stanza("<iq type='set' id='command1' from='{jid_one}/{resource_one}' to='{irc_server_one}'><command xmlns='http://jabber.org/protocol/commands' node='get-irc-connection-info' action='execute' /></iq>"),
     expect_stanza("/iq/commands:command/commands:note[text()='You are not connected to the IRC server irc.localhost']"),
 
-    send_stanza("<presence from='{jid_one}/{resource_one}' to='#foo%{irc_server_one}/{nick_one}' />"),
+    send_stanza("<presence from='{jid_one}/{resource_one}' to='#foo%{irc_server_one}/{nick_one}' ><x xmlns='http://jabber.org/protocol/muc'/></presence>"),
     sequences.connection("irc.localhost", '{jid_one}/{resource_one}'),
     expect_stanza("/message"),
     expect_stanza("/presence"),