Developer credits
Git commits in Moodle 3.9.1 by Cameron Ball
commit d4b6b26f4f0cb31ce0b2b3d1891281a680148f25 Author: Cameron Ball <cameron@moodle.com> Date: Tue, 30 Jun 2020 10:12:33 +0800 Tag: v3.9.1 MDL-69106 assignfeedback_editpdf: Keep files in conversion queue