Git commits in Moodle 3.10.4 by Tim Hunt

commit 33d6929e1f2eeaf5d2403ff0f413ff2951961401
Author: Tim Hunt <T.J.Hunt@open.ac.uk>
Date:   Tue, 13 Apr 2021 03:30:43 +0800
Tag:    v3.10.4

MDL-71313 repositories: warn if get_instances context is wrong type