$ git clone -n https://src.fedoraproject.org/rpms/ocaml-gsl.git /var/lib/mock/f39-build-2016575-46202/root/chroot_tmpdir/scmroot/ocaml-gsl
Cloning into '/var/lib/mock/f39-build-2016575-46202/root/chroot_tmpdir/scmroot/ocaml-gsl'...
$ git fetch origin 895a267af9dd9226635d6324ddd7997a98177f67:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-gsl
 * [new ref]         895a267af9dd9226635d6324ddd7997a98177f67 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 895a267 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild