spree/spree — pull request #1957 by zeeyang (2012-09-13 11:38:16+00:00)
Title: Add discount amount in gateway options

Spree is not sending the correct discount amount to the gateway.

We are using USAePay. This has always been a problem but we dealt with it manually in the merchant console. But now our gateway is rejecting payments without the correct discount value, and it has become a critical issue for us.