PHP 5.3 DirectoryIterator::getPathname bug on root

Using DirectoryIterator on root results in a different behavior of getPathname.

before 5.3 the output would be something like:

/var
/etc
...

after 5.3 it is:

//var
//etc
...

what the heck is it with the doubleslashes? It's only happening if you are using Root as the Directory to start with

new DirectoryIterator('/');

Although it seems to me like a bug, i found nothing on google. Reporting it was not possible as i am using a debian distributed version and i already know their answer. "Use the original one first"