Duplication glitch

A duplication glitch that allows players on single player to duplicate any item, even non-stackable items.

I have not tested this on Multiplayer, Because as of now, Most servers aren't running on snapshots. I have tested this on 1.7.9, It does NOT work.

This dupe is made by A redstone comparator sending signal through the item frame, this only works on chunk borders, and Has to face east.