Author: Stevani Andolo
MDL-78428 tiny_media: Update previewed embed's thumbnail
http://git.moodle.org/gw?p=moodle.git;a=commit;h=62104e46e1cb9238d01e35e32c1c8464d2d5be72
http://github.com/moodle/moodle/commit/62104e46e1cb9238d01e35e32c1c8464d2d5be72
+ 5.0 en [next,tiny_media]