$ git clone -n https://src.fedoraproject.org/rpms/perl-Data-Constraint.git /var/lib/mock/f40-build-2016346-46181/root/chroot_tmpdir/scmroot/perl-Data-Constraint
Cloning into '/var/lib/mock/f40-build-2016346-46181/root/chroot_tmpdir/scmroot/perl-Data-Constraint'...
$ git fetch origin a7bd6078a8811d97219a4c8128fc028e26ad4a78:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Data-Constraint
 * [new ref]         a7bd6078a8811d97219a4c8128fc028e26ad4a78 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a7bd607 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild