I have two users: A and B
A: checkout with Paypal
B: checkout with COD
They apply coupon code: XXXXABC
In Admin Setting:
Uses per Coupon: set to 1.
However,
user A in Payment Review (Paypal Review)
use B in Order Review.
User A and B click Place Order at the same time (or late seconds). Both of them applied XXXXABC coupon code. But, Uses per Coupon: set to 1 in Admin.
Expect result: Only one user can apply this coupon code.
In Stack Overflow: http://stackoverflow.com/questions/32983680/coupon-code-magento-1-9-x-bug
I think this issue is related to Paypal. If user A and B checkout with COD, only one can apply coupon. Any idea about this issue?
