Developer credits
Git commits in Moodle 2.6.5 by Kevin Wiliarty
commit 552f77e155574a10fce8fbd5b97f0fdb48cf4153 Author: Kevin Wiliarty <kevin.wiliarty@gmail.com> Date: Thu, 14 Aug 2014 04:40:16 +0800 Tag: v2.6.5 MDL-46464 supplies missing method (and PHPUnit test) for grading workflow