OrbitControls: Added stopPropagation as per afaff8207b42bf475acb383a171fbeec1e5b0a77. Fixes #4229.

examples/js/controls/OrbitControls.js

@@ -427,6 +427,7 @@ THREE.OrbitControls = function ( object, domElement ) {
 		if ( scope.enabled === false || scope.noZoom === true ) return;
 
 		event.preventDefault();
+		event.stopPropagation();
 
 		var delta = 0;