spree/spree — pull request #3433 by huoxito (2013-07-24 20:10:17+00:00)
Title: Fix api component orders spec

I believe the reason this spec was passing before was actually a Rails
3.2.13 bug which got resolved in 3.2.14.

order.line_items << persisted_line_item

Looks like the code above wouldn't associate that persisted line item
with the given order on a Rails 3.2.13 app