This one isn't a biggy, but I found it while in devmap and I did give all. This is a new one that I've only found in 2.2b
To reproduce it...
1) /devmap
2) /give all
3) select a single pistol (either one of the three)
4) select the double pistols
It only happens when I do a "give all", so its not a real big one. Just though I'd bring it up.