Because if you go for Philo first, the Republic-slingshot won't work. Remember, in order to get any freebie tech, you have to know all the prerequisites for that tech. So you must research/buy CoL before researching Philo if you want to get Republic as your freebie for finishing Philo first -- as we learned to our cost in our SG...
Did you get offered the chance to choose any other free tech? If so, that suggests that you actually hadn't got CoL after all. If not, and if you know for sure that you were the first to CoL+Philo, then yes, that sounds like a bug.
From my Monarch-level Builder's PoV, nothing at all!
Thanks for the explanation. Actually I WAS given the chance to choose other techs, but Republic was listed [Edit: Meant to say "was not" but if so it must've been 'cuz another Civ had already researched Philo. Or maybe I didn't research CoL after all. Whatever.] Had to research it myself, another 25-30 turns down the drain. But I'd definitely done CoL before Philo.
Apparently somebody else got Philo first, probably one of the two Civs with which I was at drawn-out war. Stuff happens, eh wot?
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