I tried dropping an item but I use a 60% keyboard so it's a bit hard for me to use arrow keys. I don't know what I exactly did, but I pressed "d" to drop it and accidentally dropped a +3 knight shield that was currently equipped, and picked up 2 of the same knight shields afterwards! I managed to record it happening so I got this image of the dupe. This occurred in the downloadable version.
I tried replicating the bug but couldn't get it to work.
