ImageEngine/cortex — pull request #280 by andrewkaufman (2014-05-21 23:13:18+00:00)
Title: Fixing crash in SceneCache ROP todo with "scene:visible" attribute

We're now using a new "sceneInterface:changingHierarchy" attribute to mark children that appear/disappear over time. The previous behavior used "scene:visible" exclusively for this check, which ran into issues when trying to pass that attribute through from the liveScene.