Git commits in Moodle 3.8.9 by Thong Bui

commit bfcae1607ce6fb6ef4edd54c6cdab3704fe3eb8b
Author: Thong Bui <qktc1422@gmail.com>
Date:   Mon, 01 Feb 2021 12:21:02 +0800
Tag:    v3.8.9

MDL-70726 behat: should_not_exist function does not work correctly