Git commits in Moodle 4.0.x by Hien Dinh

commit b82b0f6ce5b96df5ee72bdcfbfcffed818cf1bea
Author: Hien Dinh <dpvhien.devÂgmail.com>
Date:   Tue, 20 Sep 2022 22:18:55 +0800
Tag:    v4.0.5

MDL-72490 availability: Show error if conflict in date restriction