$ git clone -n https://src.fedoraproject.org/rpms/ocaml-lwt.git /var/lib/mock/f31-build-87763-31937/root/chroot_tmpdir/scmroot/ocaml-lwt
Cloning into '/var/lib/mock/f31-build-87763-31937/root/chroot_tmpdir/scmroot/ocaml-lwt'...
$ git reset --hard 2148a8ec5b8626d91d7a5086ebed9f52e3a61588
HEAD is now at 2148a8e Add BuildRequires on ocaml-mmap.