Git commits in Moodle 3.9.x by Jason Platts

commit 315ec3bad60769698cb756a2b5be738f7be60d11
Author: Jason Platts <jason.platts@open.ac.uk>
Date:   Mon, 24 Aug 2020 21:39:28 +0800
Tag:    v3.9.3

MDL-68808 forms: autocomplete throwing error in IE11