Git commits in Moodle 3.7.2 by Kristian Ringer

commit 2f39bfc7d87e970687e80e6830ba793ea30de33a
Author: Kristian Ringer <kristian.ringer@catalyst-au.net>
Date:   Tue, 11 Jun 2019 13:58:18 +0800
Tag:    v3.7.2

MDL-65886 assign: Reset numfiles to 0 when removing a file submission