$ git clone -n https://src.fedoraproject.org/rpms/ocaml-spdx-licenses.git /var/lib/mock/f42-build-3274278-41315/root/chroot_tmpdir/scmroot/ocaml-spdx-licenses
Cloning into '/var/lib/mock/f42-build-3274278-41315/root/chroot_tmpdir/scmroot/ocaml-spdx-licenses'...
$ git fetch origin 15c21c3b7bf6bdd342a37694697294686a393bf6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-spdx-licenses
 * [new ref]         15c21c3b7bf6bdd342a37694697294686a393bf6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 15c21c3 Version 1.3.0