Im setting the routes of my react-native app and im trying to combine createStackNavigator and createDrawerNavigator. So, one of the screens in my drawer is a stackNavigator (ex: Home, News, Images. where Images is a stackNavigator) and the stackNavigator have two other screens (ex: Feed and Grid) and im trying to set the Feed as the default screen, so i always get redirected to the Feed.

Ive tried something like: initialRouteName: 'Feed'

But if navigate to the Grid than navigate to some screen in the Drawer then comeback to the "Images" it opens the Grid and not the Feed

```
const ImagesTab = createStackNavigator(
    {
        Feed: { screen: Feed },
        Grid: { screen: Grid },
    },
    {
        headerMode: 'none',
        navigationOptions: {
            headerVisible: false,
        }
    }
)

const AppDrawer = createDrawerNavigator({

    home: { screen: Home },
    news: { screen: News },
    images: { screen: ImagesTab },
    galeria: { screen: AppTabNavigator },
},
    {
        contentComponent: DrawerContent
    }
);

```