Staff Reminder: Use of any exploits IS grounds for Perma-Ban.Ok, I admit, this is a bit of a troll, but IS a bug. Does not actually duplicate items, remember to not purposely use a duplication glitch, instead immediately report to a staff member. This actually does not duplicate items, so no harm in doing this.Live DemonstrationEdit: thread not intended for non-staff. *Video removed*Ok, here is a short video I whipped up displaying how to reproduce the duplication bug. Does work on other blocks than diamonds, but if you hear a player talking about this bug. Do your best to keep them quiet - if necessary get an admins help to shut them up. We need to keep this secret until Aikar can fix it tonight.