I thought the doubled yields from the Amundsen-Scott Research Station (+20% Science and 10% Production in all cities. If there are 5 Snow or Snow Hills tiles within 3 tiles of this city and owned by this player these yields are doubled.) would affect all cities, that doesn't seem to be the case: I'm getting 20% on the city I built it but only 10% in other cities. Bug or intended? Edit: Same for Science (there's 15% added to it that I don't remember the source lol).