$ git clone -n https://src.fedoraproject.org/rpms/ghc-lens.git /var/lib/mock/f31-build-54578-28016/root/chroot_tmpdir/scmroot/ghc-lens
Cloning into '/var/lib/mock/f31-build-54578-28016/root/chroot_tmpdir/scmroot/ghc-lens'...
$ git reset --hard 56d97463658c1ffbd11bcd74903ceddd12c5ee89
HEAD is now at 56d9746 refresh to cabal-rpm-0.13