Author: Tim Hunt
MDL-74752 qtype_multianswer: implement regrading hooks
http://git.moodle.org/gw?p=moodle.git;a=commit;h=9d40a13eb619e3cfc6a95e45b2d2113d7dded348
http://github.com/moodle/moodle/commit/9d40a13eb619e3cfc6a95e45b2d2113d7dded348
+ 4.0 en [regradeissuenumsubquestionschanged,qtype_multianswer]