Automattic/jetpack — pull request #1199 by mpeshev (2014-10-17 10:58:35+00:00)
Title: Fix post_content notice when the safe post is empty

When installing Jetpack for the first time, heading to Edit CSS triggers a notice for missing `post_content` since the safecss_post is an empty array. The first validation for that happens after these conditionals, so adding an extra check to prevent from further notices.