Git commits in Moodle x.x.x by Justin Merrill

commit bb8ad909385a753c7c10b0e466065fcc60861b9c
Author: Justin Merrill <Justin.Merrill@ethinkeducation.com>
Date:   Thu, 04 Nov 2021 00:45:41 +0800
Tag:    v4.0.0-beta

MDL-72236 forum: index restructure on table forum_read


commit b80d65e45a000ec06f98c5bf663ec1b8afc26a98
Author: Justin Merrill <Justin.Merrill@ethinkeducation.com>
Date:   Wed, 07 Oct 2020 22:05:29 +0800
Tag:    v4.0.0-beta

MDL-69760 core: add mdl_event index for assign adhoc tasks


commit 52a84caaaa12c3b313b264710e0bba3db9765cf2
Author: Justin Merrill <Justin.Merrill@ethinkeducation.com>
Date:   Wed, 07 Oct 2020 21:03:08 +0800
Tag:    v3.10.0-beta

MDL-69760 core: add mdl_event index for assign adhoc tasks