$ git clone -n https://src.fedoraproject.org/rpms/perl-RDF-Prefixes.git /var/lib/mock/f40-build-2020438-46630/root/chroot_tmpdir/scmroot/perl-RDF-Prefixes
Cloning into '/var/lib/mock/f40-build-2020438-46630/root/chroot_tmpdir/scmroot/perl-RDF-Prefixes'...
$ git fetch origin 081d7ecea5715b4d00177a3c1c9d30ff8372bc9a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-RDF-Prefixes
 * [new ref]         081d7ecea5715b4d00177a3c1c9d30ff8372bc9a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 081d7ec Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild