Author: Aaron Barnes
MDL-40097 completion: Make restoring grade criteria more robust
http://git.moodle.org/gw?p=moodle.git;a=commit;h=43ed7bfd0f7de14371c8a9d66885cdb727fd09e1
http://github.com/moodle/moodle/commit/43ed7bfd0f7de14371c8a9d66885cdb727fd09e1
+ 2.7 en [roleidnotfound,core_completion]