[TIMOB-27453] iOS: Cannot show fullscreen modal windows anymore (8.2.1 regression)

   var win = Ti.UI.createNavigationWindow({
       window: Ti.UI.createWindow({
           title: "Modal Window",
           backgroundColor:'green'
       })
   });
   
   win.open({
       modal: true,
       modalStyle: Ti.UI.iOS.MODAL_PRESENTATION_FULLSCREEN
   });
   

   var window = Ti.UI.createWindow({ backgroundColor: 'green' });
   var nav = Ti.UI.createNavigationWindow({ window })
   var btn = Ti.UI.createButton({ title: 'Open Next Window' });
    
   btn.addEventListener('click', () => {
     var window2 = Ti.UI.createWindow({ backgroundColor: 'red' });
     window2.open({modal:true})//,  modalStyle: Titanium.UI.iOS.MODAL_PRESENTATION_FULLSCREEN});
   });
    
   window.add(btn);
   //nav.open({ modal: true, forceModal:true});
   nav.open({ modal: true, forceModal:false, modalStyle: Titanium.UI.iOS.MODAL_PRESENTATION_FULLSCREEN});