Pages are used in places where no ref id is given, e.g. on the login screen. So the page component plugin slot does not offer this ref id information through the interface. But all places in the repository must currently set $_GET['ref_id'], so relying on this is safe for repository objects.
Pages are used in places where no ref id is given, e.g. on the login screen. So the page component plugin slot does not offer this ref id information through the interface. But all places in the repository must currently set $_GET['ref_id'], so relying on this is safe for repository objects.