CleverRaven/Cataclysm-DDA — pull request #10387 by Snaaty (2014-12-08 13:40:39+00:00)
Title: cut down blanket and pillow spawn

because you could find ridiculous amounts of those things in regular houses.

Also, I am not sure how the item spawn system in general works.

The chance in the json of the building defines the chance of spawning that goup there and the one in the item groups defines the chances of spawning that specific item IF the group is being spawned there?
Is that about right?