$ git clone -n https://src.fedoraproject.org/rpms/ocaml-ocplib-simplex.git /var/lib/mock/f33-build-199237-47935/root/chroot_tmpdir/scmroot/ocaml-ocplib-simplex
Cloning into '/var/lib/mock/f33-build-199237-47935/root/chroot_tmpdir/scmroot/ocaml-ocplib-simplex'...
$ git reset --hard b42e09cb01048e271afdca4b22aa9654d3c3a2a0
HEAD is now at b42e09c OCaml 4.11.0+dev2-2020-04-22 rebuild