patch 595793eb543ce778275da1ad086c675444e04c34
Author: E. Bosch <presidev@AT@gmail.com>
Date:   Sun Feb 21 01:12:58 CET 2021
  * irc: Fix nick rename, was not updating channel structures
diff -rN -u old-irgramd/irc.py new-irgramd/irc.py
--- old-irgramd/irc.py	2024-10-23 06:28:10.791771874 +0200
+++ new-irgramd/irc.py	2024-10-23 06:28:10.795771867 +0200
@@ -13,7 +13,7 @@
 
 from include import VERSION, CHAN_MAX_LENGHT, NICK_MAX_LENGTH
 from irc_replies import irc_codes
-from utils import chunks
+from utils import chunks, set_replace
 
 # Constants
 
@@ -145,8 +145,13 @@
         elif user.password == user.recv_pass:
             if user.registered:
                 # rename
+                current = user.irc_nick.lower()
                 await self.send_users_irc(user, 'NICK', (nick,))
-                del self.users[user.irc_nick.lower()]
+                del self.users[current]
+                for ch in self.irc_channels.keys():
+                    set_replace(self.irc_channels[ch], current, ni)
+                    set_replace(self.irc_channels_ops[ch], current, ni)
+                    set_replace(self.irc_channels_founder[ch], current, ni)
             user.irc_nick = nick
             self.users[ni] = user
             if not user.registered and user.irc_username:
diff -rN -u old-irgramd/utils.py new-irgramd/utils.py
--- old-irgramd/utils.py	2024-10-23 06:28:10.791771874 +0200
+++ new-irgramd/utils.py	2024-10-23 06:28:10.795771867 +0200
@@ -7,3 +7,8 @@
     ''' Return iterable consisting of a sequence of n-length chunks '''
     args = [iter(iterable)] * n
     return itertools.zip_longest(*args, fillvalue=fillvalue)
+
+def set_replace(set, item, new_item):
+    if item in set:
+        set.remove(item)
+        set.add(new_item)