patch 6ee9aa156a4ffb387c5d160d53ba72cc34d6e1bb
Author: E. Bosch <presidev@AT@gmail.com>
Date:   Sat Mar 18 04:43:35 CET 2023
  * telegram: Support (different) channels with same name
diff -rN -u old-irgramd/telegram.py new-irgramd/telegram.py
--- old-irgramd/telegram.py	2024-11-23 02:12:38.260444949 +0100
+++ new-irgramd/telegram.py	2024-11-23 02:12:38.260444949 +0100
@@ -177,7 +177,10 @@
         return self.get_telegram_display_name(tg_user)
 
     def get_telegram_channel(self, chat):
-        return '#' + chat.title.replace(' ', '-').replace(',', '-')
+        chan = '#' + chat.title.replace(' ', '-').replace(',', '-')
+        while chan.lower() in self.irc.iid_to_tid:
+            chan += '_'
+        return chan
 
     def get_irc_user_from_telegram(self, tid):
         nick = self.tid_to_iid[tid]