$ git clone -n https://src.fedoraproject.org/rpms/opam.git /var/lib/mock/f33-build-216912-48451/root/chroot_tmpdir/scmroot/opam
Cloning into '/var/lib/mock/f33-build-216912-48451/root/chroot_tmpdir/scmroot/opam'...
$ git reset --hard 42c833939e66f54ec4de635abddb7b00d0f5fcae
HEAD is now at 42c8339 OCaml 4.11.0+dev2-2020-04-22 rebuild