I reported this problem to pg, and I hope he will take an action! The problem is that the submission script does not consider that www.domain.com/some-article/

I reported this problem to pg, and I hope he will take an action! The problem is that the submission script does not consider that www.domain.com/some-article/ is the same as domain.com/some-article/, and looks at them as 2 different links... so it does not consider them duplicated, while it is!