[TIMOB-25874] iOS 11.2: Ti.UI.RefreshControl with Ti.UI.Window.largeTitleEnabled hides spinner

   <Alloy>
   	<NavigationWindow id="index" platform="ios">
   		<Window id="main">
   		</Window>
   	</NavigationWindow>
   </Alloy>
   

   "#main": {
   	title: "test",
   	largeTitleEnabled: true
   }
   

   var counter = 0;
   
   function genData() {
   	var data = [];
   	var i = 1;
   	for (i = 1; i <= 3; i++) {
   		data.push({ properties: { title: 'ROW ' + (counter + i) } })
   	}
   	counter += 3;
   	return data;
   }
   
   var section = Ti.UI.createListSection();
   section.setHeaderTitle("title");
   section.setItems(genData());
   
   var control = Ti.UI.createRefreshControl({
   	tintColor: 'red'
   })
   
   var listView = Ti.UI.createListView({
   	sections: [section],
   	refreshControl: control
   });
   
   control.addEventListener('refreshstart', function(e) {
   	Ti.API.info('refreshstart');
   	setTimeout(function() {
   		Ti.API.debug('Timeout');
   		section.appendItems(genData());
   		control.endRefreshing();
   	}, 100); //if setTimeout is about 1s the problem not occurs
   })
   
   $.main.add(listView);
   $.index.open();
   

   var window = Ti.UI.createWindow({
     backgroundColor: '#fff',
     title: 'Hello World',
     includeOpaqueBars: true,
   	largeTitleEnabled: true,
     extendEdges: [Ti.UI.EXTEND_EDGE_ALL]
   });
   
   var nav = Ti.UI.iOS.createNavigationWindow({
     window: window
   });
   
   var control = Ti.UI.createRefreshControl({
   })
    
   var listView = Ti.UI.createListView({
   	sections: [Ti.UI.createListSection({ items: [{ properties: { title: 'Test' } }] })],
   	refreshControl: control
   });
    
   control.addEventListener('refreshstart', function(e) {
   	setTimeout(function() {
   		control.endRefreshing();
   	}, 1000); //if setTimeout is about 1s the problem not occurs
   })
    
   window.add(listView);
   nav.open();