Parliamentary Voting System and Constituencies Bill

I am reading the hon. Gentleman's amendments with interest. I note that Republic of Ireland citizens would, as I understand it, lose the right to vote in the referendum if his amendments were to go through. However, those who live in Northern Ireland but have Republic of Ireland citizenship, so long as they were ordinarily resident in Northern Ireland, would be allowed to vote. My question is about those from Northern Ireland who might have Republic of Ireland citizenship—not UK subjects—but who subsequently move to Scotland. Would they vote or would they not, and how would we enable that to happen or not to happen?