Easy Duplication Glitch

If you put something in a chest, save your world, and then go back, break the chest and then press fabulous graphics (your device must not be able to support it) it will crash the game. However, when you open it up again in fancy graphics, you will have the items in your inventory and the chest will still be unbroken with the duplicated items. I understand this will not be possible for all players, but it allows some to have an advantage.