So are tieflings supposed to have two tails?

Every time I play a tiefling their model always seems to show two tails, and it seems like a bug. I already reported it a couple times via the interface, but I am curious if anyone else has experienced this presumably buggy visual glitch?

Also got this one a couple times. It definitely started as one tail and somehow duplicated itself on my runs. Also reported, so hopefully fixed in the next build.