[1.8]Item Render in inventory

Hi,

So I've been playing around with the new render system for items and have come across the problem of a texture not loading unless you have a dummy item.

The code for the section is

    public static final ItemFT kitty = new ItemKitty();
    public static final ItemHidden debug = new ItemDebug();
    public static void init()
    {
        GameRegistry.registerItem(debug,"debug");
        GameRegistry.registerItem(kitty,"kitty");
        Minecraft.getMinecraft().getRenderItem().getItemModelMesher().register(kitty,0,new ModelResourceLocation(Reference.MOD_ID+":kitty","inventory"));
    }

and when you comment out the registration of the debug item, item kitty no longer loads it's texture.

Just wondering if I am doing something wrong or it is actually a bug.