Is there verifiable proof of that? Or, is that an assumption?
Furthermore, how would that affect his birth status? That is, could that "over turn" his being a Natural Born Citizen (I know he isn't, just saying)?
Now, if he was Naturalized after having come back from Indonesia...then game over of course. But, there is no proof of that either.
What we do have absolute proof of is what he has publicly admitted to and what is publicly known, and that is:
1. His father was a foreign national.
and
2. (Because of 1), Barry was born with foreign citizenship (admitted on his own campaign web site).