Checkout form rejects input for problem_user, so no order can be placed
Steps to reproduce
- Log in as
problem_user - Add any product to the cart, open Checkout
- Enter First Name, Last Name, Zip “110075”
- Click Continue
Expected
Form accepts the values and the order overview opens.
Actual
First Name keeps only the last typed letter, Last Name stays empty, and submit fails with “Last Name is required”.