Git commits in Moodle 3.9.4 by Jake Dallimore

commit 627e14727e722085bf5f7f7b3786d5f1e4566944
Author: Jake Dallimore <jake@moodle.com>
Date:   Fri, 04 Dec 2020 08:42:43 +0800
Tag:    v3.9.4

weekly release 3.9.3+