Can't complete checkout with a product where "Free Shipping" toggle is enabled

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 7.3
• Fix Version/s: 7.3, Master, 7.3.X
• Component/s: Digital Store Management → Orders
• Labels:
  • 7.3-should
  • liferay-fixpack-dxp-1-7310
• Severity of Issue: Major
• Git Pull Request: https://github.com/liferay-commerce/liferay-portal/pull/208

Assumption

• A Minium Site.

Steps to Reproduce

• Go into Commerce → Product.
• Create a new simple product (eg. T-Shirt).
• Go into the SKU tab.
• Add and configure a valid SKU.
• Go into the Configuration tab and check if the Free Shipping toggle is enabled.
• Go into Minium and try to do the checkout with T-Shirt.

Expected Result

 You can complete checkout without problems.

Actual Result

 You can't complete checkout (no log, or console errors):