perf: Return the obtained chat_record

Author: wangliang181230

apps/chat/serializers/chat.py

@@ -386,6 +386,8 @@ def get_chat_record(chat_info, chat_record_id):
             if chat_record is None:
                 if not is_valid_uuid(chat_record_id):
                     raise ChatException(500, _("Conversation record does not exist"))
+            else:
+                return chat_record
         chat_record = QuerySet(ChatRecord).filter(id=chat_record_id).first()
         return chat_record