Developer credits
Git commits in Moodle 3.2.1 by Matt Davidson
commit cc15b9d46f32f278c99e9176c2796ea822b3dc59 Author: Matt Davidson <davidso1@rose-hulman.edu> Date: Mon, 12 Dec 2016 21:22:51 +0800 Tag: v3.2.1 MDL-56810 unoconv: task fails if user removed