domain Can not able to add domain name if removed

[wCORS]

if the customer is using the 'Remove' button next to the domain product in the ordering cart. e.g if needed to change the number of years, the cart doesn't allow the customer to re-add the domain name, instead, it shows an error; 

Am using the latest version 5.11.2

How to replicate this error: Add the domain, and hosting package as usual to the cart, as soon as you reach the confirmation you can remove the domain name (the same domain name), and try to re-add it to the cart, it will protect you with error "The domain .... is already on your cart"