Can duplicate items if force-quit the game

I met a bug where it is possible to duplicate items and the summary is that you save the world with the item you want in your inventory face a chest and a boulder then you enter the world put it in the chest and break the boulder in your hand and as soon as it breaks you exit Minecraft without saving later when you enter you will have the item both in the chest and in the inventory
https://youtu.be/1SOmn9jNYQU