[iso1631]

If a German citizen moves to France, they don't become a citizen of France (at least without eventually applying for it)

If a US citizen from Idaho moves to France, they likewise don't become a citizen of France

Is the problem that US citizens that move from Idaho to PR are not allowed to vote at their previous address, but US citizens who move from Idaho to France are?

[Cyberdog]

A person who moves from Idaho to PR doesn't immediately become a citizen of PR, just like with France and Germany. They would still be eligible to vote absentee as a citizen of Idaho unless and until they become a citizen of PR.

Heck, I've voted absentee in my home county in California once while I was living in a different county in California.