Git commits in Moodle 3.8.2 by Marina Glancy

commit 4c16eba0b5b3c8c41573383cdbe7e70c4e3ea12e
Author: Marina Glancy <marina@moodle.com>
Date:   Wed, 04 Mar 2020 01:30:06 +0800
Tag:    v3.8.2

MDL-56287 gradereport_history: Separate groups queries improved


commit f9a80888bcd2bd96a8345e0566302fdc202a49c8
Author: Marina Glancy <marina@moodle.com>
Date:   Mon, 13 Jan 2020 23:41:55 +0800
Tag:    v3.8.2

MDL-67680 core: Catch PHP exceptions in the after_config callback