Decorated pots can delete items when reloading the world

How to reproduce

1. Go into survival

2. Place down a decorated pot

3. Take a stack of any item, remember how many items you started with

4. Start inserting items into the decorated pot, by right clicking

5. Leave the world and reopen it

6. Break the pot with a sword

7. Sometimes, not all items will be dropped, you might need to try this several times