Author: Marina Glancy
MDL-58635 blogs: check edited blog belongs to current user
http://git.moodle.org/gw?p=moodle.git;a=commit;h=b7fcd095825b808228d40f052deccd919e626381
http://github.com/moodle/moodle/commit/b7fcd095825b808228d40f052deccd919e626381
+ 3.3 en [wrongexternalid,core_blog]