Git commits in Moodle 3.5.3 by Ryan Wyllie

commit 6185c3455a87d4e94626dce2fefd139c717b101a
Author: Ryan Wyllie <ryan@moodle.com>
Date:   Tue, 16 Oct 2018 11:25:19 +0800
Tag:    v3.5.3

MDL-63667 javascript: fix failed to pre-fetch the template error