If you have a Si (or many of them) in you inventory that you do not own inside a shop, they will replicate in your inventory. Considering the exponential growth of Sis this seems like a bad idea.

I was trying to get enough gold to be precrowned, but didn't quite have enough, so I stepped back into Waldenbrooke's shop and grabbed the ~150 Sis off the floor and waited around for them to replicate, then sold the extras.

Is this intentional?