I have just got this too. This is version 10.0.0.38, and I am capturing a US city. I captured four others in the preciding dozen turns, including capital just a couple of turns before, and that was fine, but this one causes a crash (and US has at least one other city, so nothing obvious about this city).
The attached save is from just before the crash.
ETA: It is not specific to that city. I loaded the game, and captured a city at the other end of the map belonging to China, and that made it crash too. I have not changed any policies recently, and it is quite a conicidence if both China and US happened to adopt the same policies at that time. Could it be some kind of win calculation error triggered by a change in ownership?