In Mandriva, the packages in the official stable repositories only receive updates for bug fixes. In addition to that, there is an extra repository called backports which contains latest versions of some packages. However these packages are completely unsupported.
As a completely retar^Wbizarre design decision, rpmdrake (the Mandriva package management tool) used to treat the backports repository as a source of updates, even when the user specifically disabled it. So you can imagine the mess it had beed causing.
Unfortunately the rpmdrake developer stood quite firm in his position and only a few days ago another Mandriva guy João Victor Duarte Martins submitted a patch that was just accepted.
After almost two years, one hundred comments, twenty-three votes and eight duplicates, the infamous Mandriva Linux bug #40556 (rpmdrake lists packages from disabled media source) has been fixed today.
There is still some hope in the world.