If he was born in Honolulu, he's in the clear. In order to lose his citizenship, he would have had to renounce it himself after attaining the age of 18. His parents could not have renounced it for him. And Indonesian law, such as it is, is irrelevant.
What about legal name and dual citizenship?
“If he was born in Honolulu, he’s in the clear. In order to lose his citizenship, he would have had to renounce it himself after attaining the age of 18. His parents could not have renounced it for him. And Indonesian law, such as it is, is irrelevant.”
It seems to be that if he travelled to Pakistan on an Indonesian passport he did exactly that. He was over 18 at the time.