I understand that this provision was written into the constitution when the world was different and I understand that the role of the high court is to interpret the law, not look for a sensible solution.
However there seem to be some assumptions made about this provision that just don't seem realistic.
Renouncing citizenship of some foreign country usually seems to involve sending a request and maybe filling in some form.
So it seems that we are expected to believe that a dual citizen might make a decision in the best interests of some foreign country the day before he does the paperwork, but he won't do that the next day when the paperwork has been completed. So it is necessary to do it before election, not the day after.
In theory, it sounds like a necessary provision to ensure that politicians make their decisions in Australia's best interests, but in practice I can't see how a bit of paperwork makes a difference to the allegiance the politician actually feels.
It becomes even sillier when the politician is unaware of his dual citizenship. It suggests that he might make a decision benefiting some country that he doesn't know he has some connection with before the paperwork is complete and that he won't do so afterwards.
There may well be good reasons to include the provision in the constitution, but in so many instances, it becomes a joke.

