woothemes/woocommerce — pull request #3709 by thenbrent (2013-08-30 19:11:41+00:00)
Title: Pass current instance of `WC_Order` to its filters

Pass current instance of `WC_Order` to its filters so that extensions hooking to those filters know which order the current filter is being applied to and can perform customisation on specific orders (not just all orders).