In `WP_Terms_List_Table::single_row()`, call `sanitize_term()` on the passed term (`$tag`).

Props oso96_2000, c3mdigital, scribu. 
It takes a village.
Fixes #16864.

Built from https://develop.svn.wordpress.org/trunk@28360


git-svn-id: http://core.svn.wordpress.org/trunk@28188 1a063a9b-81f0-0310-95a4-ce76da25c4cd
MediaElement players need `clear: both` to play nice with adjacent floated elements.

Fixes #27385.


Built from https://develop.svn.wordpress.org/trunk@28361


git-svn-id: http://core.svn.wordpress.org/trunk@28189 1a063a9b-81f0-0310-95a4-ce76da25c4cd
In `get_the_author_posts()`, if there is no current `$post`, return `0` and bail.

Props krogsgard, aaroncampbell.
Fixes #27998.


Built from https://develop.svn.wordpress.org/trunk@28362


git-svn-id: http://core.svn.wordpress.org/trunk@28190 1a063a9b-81f0-0310-95a4-ce76da25c4cd