Duplication glitch with a door

Description
A duplication door that duplicate any block if you put the block on it.
The door item should had laid on the ground.
The door should disappear and the item block should spawn.
The bottom of the door disapear but not the top
I break the door with the axe and a door laid on the ground.
Steps to Reproduce:
1. Put a door on the ground. (Nothing should be close to it)
2. With an axe, break the bottom of the door. A door item will fell on the ground. Take it.
3. Open the half door. A full "fake" door will appear.
4. Take the block that you want to duplicate and put it in your inventory.
5. Put the block on the door and the block that you put on the door will stay in your inventory. Now one block is next to the door and one is in your inventory.
6. You can duplicate 5 block each time you do it.
7. To restart, mine the block(s) that you just duplicate.
8. The fake door is a duplication door that will duplicate all the blocks you want.
9. Enjoy glitchin'