I'm not sure it ever did, dearest sister in Christ. And it really wouldn't matter whether it did or not, as far as the "natural-born" criterion is involved. This is the problem: His father was not an American citizen. Neither was his stepfather.
His mother Stanley Ann was. But whether she had the ability to transfer American citizenship to her son at the time of his birth (because she was not of legal age to do so under the relevant naturalization statutes of the time) is the crux of the issue.
But even if Obama's claim to citizenship stems from his mother, still he would not be a "natural-born citizen of the United States" because of the citizenship status of his father(s).
At least, this would be how I'd define the problem before us.
Maybe the Treasury of the United Kingdom should take a look at back taxes owed by our sitting POTUS? Or maybe the Indonesian fiscal authorities?
If he never renounced his citizenship (and if such citizenship existed by reason of his father's legal domicile) then he probably owes back taxes to the U.K.
And unlike trying to get a judicial hearing which requires "legal standing" and time and money and can be easily derailed on technicalities - complaints of tax evasion or avoidance (at least in the U.S.) trigger an automatic and official investigation.
It would be ironic for Chicago rooted Obama to be brought down to earth by the same technique used against Chicago rooted Capone. Capone had all the usual criminal bases covered up, but he didn't allow for the IRS.
But, of course, I do not know if England's tax collection authority is as powerful, autonomous, mindless and brutal as our own IRS.