It's not possible to checkout after completing an order with a selected Billing Address

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 7.4 DXP U3
• Fix Version/s: 7.4 DXP U4
• Component/s: Shopping Experience
• Labels:
  • pt-app-security-review
• Severity of Issue: Major
• Git Pull Request: https://github.com/liferay-commerce/liferay-portal/pull/1788

Steps to reproduce:

1. Create a site using Minium
2. Navigate to Minium Account Management page
3. Create a new account(e.g. Commerce Account)
4. Navigate to the Account Addresses tab
5. Create a new Billing Address -> Save
6. Create a new order by adding a product to the cart
7. Navigate to that pending order details page
8. Set the Billing Address previously created as the selected Billing Address for the order -> Save
9. Checkout
10. On the Shipping Address page, deselect "Use shipping address as billing address"
11. Complete the checkout
12. Create a new order
13. Checkout the order

Expected Behavior:

 It's possible to complete the checkout.

Actual Behavior:

 It's not possible to complete the checkout, this message appears: "The cart is empty. Please add products to proceed with the checkout.".