Yoast/wordpress-seo — pull request #1651 by raulillana (2014-10-07 18:23:35+00:00)
Title: Include manual indexed tags into post tags sitemap

Checks noindex and include status for each term.
If *index* and *always* are selected for a term, this will include it in the *post_tag-sitemap.xml*.

The old validation double checked variable type with useless functions like *is_string()* while *===* does the same.