woothemes/woocommerce — pull request #3260 by bernardpeh (2013-05-31 01:28:04+00:00)
Title:     updating billing email under each order in admin panel should update the woocommerce_downloadable_product_permissions table as well.

At the moment, when administator update billing address under each order (in admin -> woocommerce -> orders), the woocommerce_order_downloads_save function is called but it uses the old "_billing_email" meta instead of the new one from the $_POST var.