Why does Mecca stay independent?

After the Saudi civil war, you would expect Mecca to be re-integretaed into the new government but no, instead it just sits there independently. iS this intentional or will it be fixed?

https://preview.redd.it/0cf54gkj1a3e1.jpg?width=2560&format=pjpg&auto=webp&s=6036a96b616f7e9daec1263d04973bba5f13c2a4