$ git clone -n https://src.fedoraproject.org/rpms/ocaml-uucp.git /var/lib/mock/f41-build-856739-167764/root/chroot_tmpdir/scmroot/ocaml-uucp
Cloning into '/var/lib/mock/f41-build-856739-167764/root/chroot_tmpdir/scmroot/ocaml-uucp'...
$ git fetch origin acf8e478efc9526fe7d4501ce812b0f4f18421e6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-uucp
 * [new ref]         acf8e478efc9526fe7d4501ce812b0f4f18421e6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at acf8e47 Version 16.0.0