[TIMOB-10446] iOS: tabGroup child does not open when parent window is opened under certain conditions

function createTabGroupObject() {
	var tabGroupObject = {};

	tabGroupObject.window = Ti.UI.createWindow({
		backgroundColor : 'red'
	});

	tabGroupObject.tabGroup = Ti.UI.createTabGroup();
	tabGroupObject.window.add(tabGroupObject.tabGroup);

	tabGroupObject.addTabFromString = function(string) {
		var tabWindow = Ti.UI.createWindow({
			backgroundColor : 'green'
		});

		var tab = Ti.UI.createTab({
			window : tabWindow,
			title : string
		});

		tabGroupObject.tabGroup.addTab(tab);
		tabGroupObject['tab' + string] = tab;
	};

	tabGroupObject.open = function() {
		tabGroupObject.window.open();
		// tabGroupObject.tabGroup.open(); // work-around to open tabGroup manually
	};

	return tabGroupObject;
}

var tabGroupObject = createTabGroupObject();

tabGroupObject.addTabFromString('Checkout');
tabGroupObject.addTabFromString('Return');

tabGroupObject.open();

var win = Ti.UI.createWindow({backgroundColor:'red'});

var tabGroup = Ti.UI.createTabGroup({backgroundColor:'green'});

win.add(tabGroup);

win.open();