Actually, I have had the same thing happen to me. At the end of turn one, I've had two libraries and one prestigious location spawn where I am sure there weren't any. (I know, because it was for a playthrough, and I had a snapshot of my starting location)
I think that the game spawns resources for everyone, player and AI, and if it's not some master plan of the developers, it should be fixed.
As a matter of fact, I do have that same game posted on on that playthrough. Give it a try, i.e. load it, and go to turn 2 a couple of time, you will see it happen.