[TIMOB-7573] Android: Rhino: Titanium.UI.TabGroup: opening and closing new tab group in a cycle crashes app with null pointer exception

var win = Ti.UI.createWindow({
	backgroundColor: 'red',
	fullscreen: false,
	exitOnClose: true
});

var button = Ti.UI.createButton({
	height: 50,
	title: 'click'
});

button.addEventListener('click', function(e)
{
	var tabGroup = Ti.UI.createTabGroup();
	
	var tabWin = Ti.UI.createWindow({
			title: 'blue',
			backgroundColor: 'blue'
		});
	
	var tabButton = Ti.UI.createButton({
			title: 'close'
		});
	
	var tab = Ti.UI.createTab({
			title: 'blue',
			window: tabWin
		});
	
	tabWin.add(tabButton);
	
	tabButton.addEventListener('click', function(e){
		tabGroup.close();
	});
	
	tabGroup.addTab(tab);	
	tabGroup.open();
});

win.add(button);
win.open();