Why does Shopify create a new order with the ORIGINAL address the customer made when they 1st placed an order instead of the LAST Address they used?

Hey everyone, I've been using Shopify for just over 10 years now and we are in the Men's Clothing Business. We create an Exchange Order for a customer when they for example want to do an Exchange from L -> XL. In the past, we could create a "Draft Order" and that automatically reserves the items for