Beacon item duplication on touchscreen devices

If you open a beacon on a touchscreen device, double tap a stackable item in the first 9 slots (your hotbar) the number of that item will double. For example, if you put 32 diamonds in your hotbar, open the beacon UI, and double tap on the diamonds, you will have 64. This allows players to get multiple dragon eggs easily after killing the wither. It also allows players to get a 9x9 beacon with only one iron, gold, emerald, diamond, or netherite.