Description of problem: See: http://download.fedora.redhat.com/pub/fedora/linux/releases/10/Fedora/i386/os/repodata/ http://download.fedora.redhat.com/pub/fedora/linux/releases/10/Everything/i386/os/repodata/ ...the first is what's on the install media, it doesn't use --unique-md-filenames and doesn't contain a repomd.xml.asc file, the later one does. This is not a giant problem, but it seems inconsistent for no reason.
Well, first, the Fedora tree isn't used by yum clients, it should only be used by the media at install time, or network installs, so having signed repodata there is rather pointless. Second, it was different processes creating them, and they have different content within them. It was too late in the F10 cycle to add unique metadata options to pungi, and I'm still not convinced that making them unique has any real value in media repos.