Git commits in Moodle 3.11.x by David Watson

commit ad590f99db482cf884b5f3b8ae55ddefc2a3161e
Author: David Watson <david@evolutioncode.uk>
Date:   Mon, 11 Jan 2021 01:26:31 +0800
Tag:    v3.11.0-beta

MDL-69431 course: validate section url param against maxsections