Your source is mistaken.
A minor cannot renounce his American citizenship, nor can others do it for him.
Depending on Indonesian law, it is perhaps true that his parents may have opted for Indonesian citizenship for him.
If that were the case, given dual citizenship, Obama could've renounced his American citizenship when he reached his majority.
There is no evidence, however, that he did.
Then, why doesn’t he just present his birth certificate and his papers to the court and put an end to all this?
The question of how Obama traveled to Pakistan is indirect inferential evidence. Easier on an Indonesian passport, so it is rumored.
You cannot have dual citizenship in Indonesia. At 18 he would have had to confirm he wanted to be an American citizen and if he didn’t then he would remain an Indonesian citizen. I have a cousin who settled in England after he retired from the military. At 18 they had to renounce either British or American citizenship.
He traveled in 1981 to Pakistan and at that time Americans were not allowed to travel to Pakistan except on Government business and you had to be Muslim. He sure didn’t use an American passport in 1981. He was over 18 when he traveled so the time to renounce his Indonesian citizenship had passed. That is why Berg wants the paperwork when he swore allegiance to the United States at 18 if he was born in Hawaii and his Kenyan grandmother made it up that she was at his birth in Kenya.
I believe the rules for being eligible to run for president states no dual citizenships.