tinymce/tinymce — pull request #316 by lepoltj (2014-01-27 16:29:39+00:00)
Title: Fixed potential crash with lastFocusBookmark during focusin event

This is likely related to the same cause as https://github.com/tinymce/tinymce/pull/306

I can't come up with good steps to reproduce, but there are times when my editor(s) aren't visible, which is sometimes causing bad things to happen (like crashes).