Git commits in Moodle 3.8.4 by cescobedo

commit 6bfddeea21a4ae2af20319ab6c20caf0a4d4ed15
Author: cescobedo <carlos.escobedo@gmail.com>
Date:   Thu, 25 Jun 2020 21:09:09 +0800
Tag:    v3.8.4

MDL-67172 core_h5p: Prevent synchronous access to save the same h5p


commit 74860627f24dd2c2bb462f0d5dae9c4db8e0eba8
Author: cescobedo <carlos.escobedo@gmail.com>
Date:   Fri, 08 May 2020 01:25:03 +0800
Tag:    v3.8.4

MDL-68579 core_h5p: Add a check to avoid execute task using BEHAT