spree/spree — pull request #4607 by jordan-brough (2014-04-23 22:16:09+00:00)
Title: Update orders.promo_total in OrderUpdater

orders.promo_total field wasn't getting updated in certain cases, like when you add the promo first and then a line item afterward.
the *adjustment* got updated and the correct number was displayed in the cart, but the orders.promo_total value was incorrect.