[TIMOB-16835] BlackBerry: Ti.UI.View getChildren returns empty array

var mainWindow = Titanium.UI.createWindow({
    backgroundColor: 'red',
    title: 'Red Window'
});


	// Create a Button.
	var button1 = Ti.UI.createButton({
		title : 'button1',
		height : Ti.UI.SIZE,
		width : Ti.UI.SIZE
	});
	
	Ti.API.info("button1 type: " + button1);
	
	
	// Add to the parent view.
	mainWindow.add(button1);

	// Listen for click events.
	button1.addEventListener('click', function() {
		Ti.API.info('\'button1\' was clicked! : pre-eventListener');
		
	});

Ti.API.info('children : ' + JSON.stringify(mainWindow.getChildren()));