Description: Pickpocketing BUg with Stacking
Steps to reproduce:
Have a Scroll Case in your inventory with scrolls in it
Pickpocket random mobs for coin / items / money
Manage to pickpocket a Scroll Case.
Expected result
You have a second scroll case in your inventory.
Actual result
Second Scroll Case automatically stacks with the first scroll case, making both unsuable, when you split them up again, both scroll cases have been completely cleaned out of all scrolls thus deleting any scrolls you had in your original scroll case.
Misc Notes:
I've had this happen once, it wiped my scroll case because I happened to pick pocket a scroll case, I had no idea this happened till I tried to store all my gathered scrolls and found out my scrolls were all gone due to this bug. 
Which Server(s)?
Underdark? (Maybe more I haven't tried it on any other server)
Gaming Platform(s)?
Steam / PC