$ git clone -n https://src.fedoraproject.org/rpms/opam.git /var/lib/mock/f37-build-642874-72070/root/chroot_tmpdir/scmroot/opam
Cloning into '/var/lib/mock/f37-build-642874-72070/root/chroot_tmpdir/scmroot/opam'...
$ git reset --hard 17d5763686b15e1e64a8b77f95afe926b12598e3
HEAD is now at 17d5763 Rebuild for ocaml-cmdliner 1.1.1