Git commits in Moodle 3.9.0 by David Saylor

commit 525a9da269c896d6ef271259d767bee93c8f4b93
Author: David Saylor <kingdavid127@gmail.com>
Date:   Sat, 21 Sep 2019 06:05:40 +0800
Tag:    v3.9.0-beta

MDL-52904 completion: reference context in cron query