Git commits in Moodle 3.8.3 by David Saylor

commit 8a29ee1722fb9e52cf6b62b43b1ed93c7f75dd63
Author: David Saylor <kingdavid127@gmail.com>
Date:   Sat, 21 Sep 2019 06:05:40 +0800
Tag:    v3.8.3

MDL-52904 completion: reference context in cron query