Git commits in Moodle 3.11.0 by Alex Rowe

commit 69a8d5043ec4ed164e3b712e95583eb85d957183
Author: Alex Rowe <arowe@studygroup.com>
Date:   Tue, 09 Feb 2021 09:25:46 +0800
Tag:    v3.11.0-beta

MDL-70049 assign: count_submissions_need_grading call when can't grade