$ git clone -n https://src.fedoraproject.org/rpms/perl-RDF-NS.git /var/lib/mock/f39-build-1440729-32351/root/chroot_tmpdir/scmroot/perl-RDF-NS
Cloning into '/var/lib/mock/f39-build-1440729-32351/root/chroot_tmpdir/scmroot/perl-RDF-NS'...
$ git fetch origin 6c30d2b7228d2d1f199eeab64839008b1a5c16f2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-RDF-NS
 * [new ref]         6c30d2b7228d2d1f199eeab64839008b1a5c16f2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6c30d2b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild