[TIMOB-27894] iOS: Navigation bar flickers on open (SDK 9.0.2 regression, iOS 13+)

   var win2 = Titanium.UI.createWindow({
       backgroundColor: 'red',
       title: 'Red Window',
       barColor: 'yellow',
     //  largeTitleEnabled: true
   });
   
   var win1 = Titanium.UI.createNavigationWindow({
      window: win2
   });
   
   var win3 = Titanium.UI.createWindow({
       backgroundColor: 'blue',
       title: 'Blue Window',
       barColor: 'green',
     //  largeTitleEnabled: false
   });
   
   var button = Titanium.UI.createButton({
       title: 'Open Blue Window',
   });
   button.addEventListener('click', function(){
       win1.openWindow(win3, {animated:true});
   });
   
   win2.add(button);
   var button2 = Titanium.UI.createButton({
       title: 'Close Blue Window',
   });
   button2.addEventListener('click', function(){
       win1.closeWindow(win3, {animated:false});
   });
   
   win3.add(button2);
   win1.open();
   

   var win3 = Titanium.UI.createWindow({
       backgroundColor: 'blue',
       title: 'Next Blue',
       largeTitleEnabled: true,
   });
   
   var win1 = Ti.UI.createWindow({
       backgroundColor: 'blue',
       title: 'Blue',
       largeTitleEnabled: true,
   });
   var button = Titanium.UI.createButton({
       title: 'Open Next Blue',
   });
   button.addEventListener('click', function(){
       tabGroup.activeTab.open(win3);
   });
    
   win1.add(button);
   
   var win2 = Ti.UI.createWindow({
       backgroundColor: 'red',
       title: 'Red',
       largeTitleEnabled: true,
   });
   win2.add(Ti.UI.createLabel({text: 'I am a red window.'}));
   
   var tab1 = Ti.UI.createTab({
       window: win1,
       title: 'Blue',
   }),
   tab2 = Ti.UI.createTab({
       window: win2,
       title: 'Red'
   }),
   tabGroup = Ti.UI.createTabGroup({
       tabs: [tab1, tab2]
   });
   tabGroup.open();