Put the summary of the bug you're having here

What I expected to happen was...:
The netherite ingots won't duplicate itself

What actually happened was...:
The netherite ingots duplicated itself when I quit the game

Steps to Reproduce:

Video description: https://youtu.be/hA6nMa7NnYw

Text description:

1. Craft a netherite ingot

2. Place down a hopper

3. Quit the world

4. Open the world again

5. Right click the hopper

6. Without quitting the hopper menu, press Ctrl+Shift+Esc on the keyboard

7. This will open the task manager. Click on OpenJDK and then click on End Task

8. This will close Minecraft. Open Minecraft again

9. A netherite ingot should appear both inside the hopper and in the inventory.

10. Put the netherite ingot in the inventory to the hopper, and repeat steps 6-10. The amount of netherite ingots should grow exponentially.