laravel/cashier — pull request #124 by adamgoose (2014-11-10 17:17:36+00:00)
Title: Removing Coupon from Subscription

Previously, the coupon was added to both the Customer AND Subscription objects. This caused the coupon to be redeemed twice, which presented problems for coupons with a limited redemption count. Now, the coupon is only added to the Customer object.

Signed-off-by: Adam Engebretson