Git commits in Moodle 3.10.0 by Cameron Ball

commit 548c44c89c06f0723e8d4eb302b4c2e99ede064e
Author: Cameron Ball <cameron@moodle.com>
Date:   Tue, 30 Jun 2020 10:12:33 +0800
Tag:    v3.10.0-beta

MDL-69106 assignfeedback_editpdf: Keep files in conversion queue