Git commits in Moodle 3.9.7 by Huong Nguyen

commit 0273fc77312c27b779e873b4d491ec72e2a99eae
Author: Huong Nguyen <huongnv13@gmail.com>
Date:   Thu, 01 Apr 2021 15:11:19 +0800
Tag:    v3.9.7

MDL-70947 File upload: Upload protection