fix session

bot.py

@@ -114,6 +114,7 @@ chat_id = message.chat.id)
 async def send_topchat(message: types.Message):
     changechat_id = session.query(user).filter(user.user_id == message.from_user.id).first()
     chats = message.chat.id 
+    if changechat_id.chat_id != chats:
         changechat_id.chat_id = chats
         session.commit() 
         session.close()