yes, but for that there is (I guess) the standard principle -- it's outside of the control of the person being naturalized, so they have a free pass as long as

yes, but for that there is (I guess) the standard principle -- it's outside of the control of the person being naturalized, so they have a free pass as long as they pinky-promise to not use the other passport for convenience. Same goes for refugees -- it doesn't make sense to ask a persecuted person to fill all the necessary paperwork with the place that persecuted them. That is standard, but Ukraine also had the procedure cost in that list of exception for political reasons. Nowdays, after the loophole is repealed, the muchhonoured-clearexcelency-mister-chief-of-the-military pushes for some version of dual citizenship where citizens of nice countries can sign a pledge instead of allegiance instead.