I found a sword that I thought I would try to sell for about 20-25 mil so I started it at 23,999,999. Didn't sell, so 22,999,999. Didn't sell so 21,999,999. Didn't sell, so 20,999,999. Didn't sell so 19,999,999. Then 18,999,999 and didn't sell so canceled.
I just noticed it was in my stash today and thought it was funny that I had forgotten to re-list it for the next cheaper number, 17,999,999, so I right clicked and chose "find similar." BOOM that same sword comes up for 20,999,999 with 14hr8min to go. Same name, same exact stats, same amount I listed it for about 12 hours ago.
I'm tempted to buy it and dual wield dupes just for the hell of it and to see if I CAN buy this duped item and have two in my stash. Also this item is NOT listed in my current auctions so I have no idea who the money would go to if it were purchased.
People must have figured out how to reproduce this glitch predictably, or maybe they are doing what I did and canceling and re-listing godly items, in the hopes that that one time out of a thousand, this happens. It would explain the AH lag (heavy load).
The sword in question:
Edited to add: I equipped the one in my stash on my barb and logged out, and it does work and show on my profile ( though I may have equipped my regular weapon to play by the time you read this)