[TIMOB-19280] iOS: MAP Click event not returning clicksource properly

   var MapModule = require('ti.map');
   var win = Ti.UI.createWindow({
   	backgroundColor : 'white'
   });
   var opera = MapModule.createAnnotation({
   	latitude : -33.8569,
   	longitude : 151.2153,
   	centerOffset : {
   		x : 80,
   		y : 25
   	},
   	image : 'SydneyOperaHouse.jpg',
   	title : 'Sydney Opera House',
   	subtitle : 'Sydney, New South Wales, Australia',
   	// For eventing, use the Map View's click event
   	// and monitor the clicksource property for 'rightButton'.
   	rightButton : Ti.UI.iPhone.SystemButton.CONTACT_ADD
   });
   var bridge = MapModule.createAnnotation({
   	latitude : -33.852222,
   	longitude : 151.210556,
   	pincolor : MapModule.ANNOTATION_PURPLE,
   	title : 'Sydney Harbour Bridge',
   	subtitle : 'Port Jackson',
   	// For eventing, use the Map View's click event
   	// and monitor the clicksource property for 'leftButton'.
   	leftButton : Ti.UI.iPhone.SystemButton.INFO_DARK
   });
   var mapview = MapModule.createView({
   	mapType : MapModule.NORMAL_TYPE,
   	region : {
   		latitude : -33.87365,
   		longitude : 151.20689,
   		latitudeDelta : 0.1,
   		longitudeDelta : 0.1
   	},
   	annotations : [bridge, opera]
   });
   
   mapview.addEventListener('click', clicked);
   
   win.add(mapview);
   win.open();
   
   function clicked(evt) {
   	Ti.API.info(evt.clicksource);
   	Ti.API.info(JSON.stringify(evt));
   }