[TIMOB-9101] iOS: Titanium.TabGroup - Navbar comes in partial size after orientation is changed

// this sets the background color of the master UIView (when there are no windows/tab groups on it)
Titanium.UI.setBackgroundColor('#000');
 
// create tab group
var tabGroup = Titanium.UI.createTabGroup();
 
 
//
// create base UI tab and root window
//
var win1 = Titanium.UI.createWindow({  
    title:'Tab 1',
    backgroundColor:'#fff',
    barImage:'nav_bg.png',
    tabBarHidden:true
});
 
var button = Ti.UI.createButton({
    title:'open',
    width:100,
    height:50
});
 
button.addEventListener('click', function() {
    //win2.open();
    tabGroup.activeTab.open( win2 );
})
 
win1.add(button);
 
var win2 = Titanium.UI.createWindow({  
    title:'Tab 2',
    backgroundColor:'#fff',
    barImage:'nav_bg_2.png',
});
 
var tab1 = Titanium.UI.createTab({  
    title:'Tab 1',
    window:win1
});
 
 
tabGroup.addTab(tab1);  
 
// open tab group
tabGroup.open();