$ git clone -n https://src.fedoraproject.org/rpms/perl-Test-Database.git /var/lib/mock/f39-build-1439557-32265/root/chroot_tmpdir/scmroot/perl-Test-Database
Cloning into '/var/lib/mock/f39-build-1439557-32265/root/chroot_tmpdir/scmroot/perl-Test-Database'...
$ git fetch origin 40aa1fb28c30b8558cf492a51a907b973c18d3ae:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Test-Database
 * [new ref]         40aa1fb28c30b8558cf492a51a907b973c18d3ae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 40aa1fb Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild