Author: Jun Pataleta
MDL-70815 mod_choice: Custom completion implementation
http://git.moodle.org/gw?p=moodle.git;a=commit;h=4a9aeeca5941aa9dc116061bc315fc449b0e7df2
http://github.com/moodle/moodle/commit/4a9aeeca5941aa9dc116061bc315fc449b0e7df2
+ 3.11 en [completiondetail:submit,mod_choice]