Feature request: Put unpaid Commerce products on hold

[opentype]

So I announced a few Commerce products with a newsletter and sold them instantly this way. Problem is: I sold more than I actually have! 😰

Because people over here like to pay with wire transfer, so the payment is processed manually. But until the payment is confirmed by me, the product stays available for other people to order! So orders can pile up, even if I am already of of stock. 

Or is there a way to prevent this already? If not, please add an option to put products on hold/out of stock if they were ordered with “manual payments” until the order was canceled.