Developer credits
Git commits in Moodle 3.8.6 by Dan Marsden
commit c67361661277c42cf169d0cb007f86d222a4f01d Author: Dan Marsden <dan@danmarsden.com> Date: Fri, 03 Jul 2020 07:23:17 +0800 Tag: v3.8.6 MDL-69641 grade: fix slow query.
commit c67361661277c42cf169d0cb007f86d222a4f01d Author: Dan Marsden <dan@danmarsden.com> Date: Fri, 03 Jul 2020 07:23:17 +0800 Tag: v3.8.6 MDL-69641 grade: fix slow query.