Automattic/jetpack — pull request #452 by kraftbj (2014-04-07 20:51:42+00:00)
Title: Open Graph: Fixes get_post_meta lacking an argument to return a single string

In Automattic/jetpack#364, we added using a Facebook publicize user to the article:author OG tag, if connection exists. The `get_post_meta` lacked the true argument to return a string instead of an array, which caused "http://Array" to be returned as the OG tag.