I had a game on a map I made of the Mediterranean area (huge) before the patch came out. It crashed and I figured this was because the mentioned limit on number of cities had been reached. After I installed the patch I went back to this save game and correctly it didn't crash. Only now the time between turns is insane. By chance I got to see why: The AI still TRIES to found cities, and since the settler isn't allowed to do this, it tries again and again, about 100 times before it gives up. Next turn it's at it again.
The game was really fun so it was too bad I just deleted the whole thing. Guess I have to make the map smaller next time