Summary:
Changelog: [internal]
Prevent crash when casting of state to `ImageShadowNode::ConcreteState` fails. This doesn't fix root cause of the problem but stops the app from crashing.
Reviewed By: JoshuaGross
Differential Revision: D26604807
fbshipit-source-id: 17a2ead56ac68e560070ed4defd364a9d1dfd1e8