Check for None when iterating through permissions

Author: Dorukyum

discord/bot.py

@@ -211,7 +211,7 @@ async def register_commands(self) -> None:
                     self.application_commands[i["id"]] = cmd
 
                     # Permissions
-                    permissions = [perm.to_dict() for perm in cmd.permissions if perm.guild_id is None or (
+                    permissions = [] if cmd.permissions is None else [perm.to_dict() for perm in cmd.permissions if perm.guild_id is None or (
                                 perm.guild_id == guild_id and perm.guild_id in cmd.guild_ids)]
                     guild_permissions.append({"id": i["id"], "permissions": permissions})