Grindstone gives infinite experience

This bug gives the player the ability of infinite experience from an enchanted item and a grindstone.

 

To replicate, you just need a grindstone, at least one enchanted item (for example a golden sword) and +4 non stackable/different items on the floor.

 

You trow an item and grab the result of the grindstone, the experience is given to you, and the item stills enchanted. I am attaching a video showing the bug, but some frames dissapeared. The screenshots are a comparision of the xp levels before and after the bug (59-63).

 

Note: Credits to my friend Xenomorfo9, who tested the bug in PS4 =)