Duplication Exploit

The regenerating floor of the end dimension can be abused to duplicate items easily. Works on realms and local worlds.

How to do the exploit:

1. set up a floor at the lowest point in the end near the main end island (the chunk needs to be empty, all void)
2. find a chunk border, place a sticky piston with a chest next to it in one chunk near a chunk border that leads into an unaltered chunk
3. fill the chest with items, use the piston to push the chest into the unaltered chunk so only the chest is in that new chunk
4. wait a bit, then pull the chest back, move the player into a neighbouring and log out quickly
5. log back in, the chests will have duplicated on the chunk border, all items in them are copied (can somtimes create invisible glitched chests), this can be repeated infintely

This exploit is related to MCPE-129581