Git commits in Moodle 4.0.0 by Tony Butler

commit a0595719d00c391f738a6343090baed9be8a7720
Author: Tony Butler <tonyjbutler@gmail.com>
Date:   Fri, 18 Jun 2021 00:43:36 +0800
Tag:    v4.0.0-beta

MDL-71945 mod_assign: Remove unneccesary call to assign_update_grades()

commit 46fd1d77d6e46d59ad54215ba00acbf74c2f2d42
Author: Tony Butler <tonyjbutler@gmail.com>
Date:   Wed, 16 Jun 2021 01:21:44 +0800
Tag:    v4.0.0-beta

MDL-71694 assignfeedback_comments: Behat test for feedback preservation

commit ec0185ccc246a1a1dd59ea6a8e5cb7fdc21d961c
Author: Tony Butler <tonyjbutler@gmail.com>
Date:   Fri, 28 May 2021 17:21:01 +0800
Tag:    v4.0.0-beta

MDL-71694 assignfeedback_comments: Fill latest submitted comment data