Developer credits
Git commits in Moodle 3.5.x by Ann Adamcik
commit 4b4280f3e8c51d81ea0c165baeea596c25a89e5f Author: Ann Adamcik <adamann2@isu.edu> Date: Sat, 02 Dec 2017 03:56:15 +0800 Tag: v3.5.0-beta MDL-58697: Only get group submission if enabled