STORM-173 : use isEmpty() instead of getFirstRootNode() to check selection
STORM-173 : use isEmpty() instead of getFirstRootNode() to check selection

gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm