How come when the AI takes my city and then I retake it I not only lose all my cultural buildings but I also have to quell resistors in the city that was mine but 1 turn prior? Why would they be resisting? Meanwhile I bombard an AI city down to 0% defensive bonus and take their city. Then I hold their city for several turns and quell the resistance completely. Then they recapture the city and they get no resistance whatsoever. They also get their full 60% defensive bonus back immediately. Am I missing something or is this all messed up?