$ git clone -n https://src.fedoraproject.org/rpms/ocaml-gsl.git /var/lib/mock/f39-build-2472853-61492/root/chroot_tmpdir/scmroot/ocaml-gsl
Cloning into '/var/lib/mock/f39-build-2472853-61492/root/chroot_tmpdir/scmroot/ocaml-gsl'...
$ git fetch origin 5d5ae3d85d50eeda6823cf42b9cb44c362c5a134:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-gsl
 * [new ref]         5d5ae3d85d50eeda6823cf42b9cb44c362c5a134 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5d5ae3d Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild