Git commits in Moodle 3.9.x by Rex Lorenzo

commit 330c871c3faafe37ad8862ae6e8d8af58d6b21b3
Author: Rex Lorenzo <rex@teaching.ucla.edu>
Date:   Thu, 04 Jun 2020 14:02:02 +0800
Tag:    v3.9.0-rc2

MDL-68912 user: "Send a message" select all not working