Git commits in Moodle 3.7.9 by Juan Leyva

commit d797697168c4086c04bdf95888cb37facbb0e8f9
Author: Juan Leyva <juanleyvadelgado@gmail.com>
Date:   Tue, 29 Sep 2020 00:55:25 +0800
Tag:    v3.7.9

MDL-67015 mod_data: Prevent users adding entries to other groups