another fix for reaction

src/bot/handler/dynamicMentionHandler.py

@@ -23,6 +23,9 @@ class DynamicMentionHandler(AbstractHandler):
         self.chat_repository = ChatRepository()
 
     def handle(self, update: Update, context: CallbackContext) -> None:
+        if hasattr(update, 'message_reaction'):
+            return
+        
         users = self.chat_repository.get_users_for_group(self.inbound)
 
         Replier.markdown(update, MessageBuilder.mention_message(users))

src/bot/message/replier.py

@@ -18,7 +18,7 @@ class Replier:
         telegramRestrictionCharacters = ['_', '*', '[', ']', '(', ')', '~', '`', '>', '#', '+', '-', '=', '|', '{', '}', '.', '!']
 
         for character in telegramRestrictionCharacters:
-            formatted.replace(character, "\\" + character)
+            formatted.replace(character, r'\{character}')
 
         return formatted