Follow-up to #38609 and #38704; handle slashes correctly for taxonomy terms. Props westonruter, jnylen0. Fixes #38726, see #38609. Built from https://develop.svn.wordpress.org/trunk@39190 git-svn-id: http://core.svn.wordpress.org/trunk@39130 1a063a9b-81f0-0310-95a4-ce76da25c4cd