Developer credits
Git commits in Moodle 3.8.x by Anthony Forth
commit c47d17b93bb944d98b236a3e3ecd63c5ec6283b2 Author: Anthony Forth <a.j.forth@open.ac.uk> Date: Wed, 12 Feb 2020 20:26:16 +0800 Tag: v3.8.2 MDL-67945 enrol: missing $DB in edit_instance_form