Before you ask no, I didn't have a tier 0 set in my inventory. I'm not a dummy.
I hit the heirloom button on my Thick Gilded Hourglass Gauntlets and received a duplicate pair of +1 gauntlets instead of +2 gauntlets.
I'm kinda pissed because I don't want to go through the hassle of trying to sell them for a loom point, and I thought the devs should know this happens.
Thanks