At the branchpoint, the rel-eng SOP includes creating empty updates/{newversion}/{arch}/ repositories, and creating empty updates/testing/{newversion}/{arch}/ repositories. However, corresponding debuginfo repositories in updates/ are not created, while they are in updates/testing/.

updates/testing/15/SRPMS/repodata
updates/testing/15/i386/debug/repodata
updates/testing/15/i386/repodata
updates/testing/15/x86_64/debug/repodata
updates/testing/15/x86_64/repodata
updates/15/i386/repodata
updates/15/SRPMS/repodata
updates/15/x86_64/repodata

MirrorManager returns an (empty) metalink document for non-existant requested repositories. Yum requests these debuginfo repositories as well, and doesn't like it when it gets back this (empty) metalink document. See bug https://bugzilla.redhat.com/show_bug.cgi?id=679783

Please adjust the SOP to ensure that empty updates/{newversion}/{arch}/debug/ repositories are created at the same time updates/{newversion}/{arch} repositories are created.