Git commits in Moodle 3.5.0 by Eric Merrill

commit 815c44ce076ed407ec21dfda5b6ab0fbfd91240f
Author: Eric Merrill <merrill@oakland.edu>
Date:   Tue, 10 Apr 2018 02:47:50 +0800
Tag:    v3.5.0-beta

MDL-61913 restore: Protect against blocks that aren't being created