$ git clone -n https://src.fedoraproject.org/rpms/ghc-show.git /var/lib/mock/f31-build-54820-28063/root/chroot_tmpdir/scmroot/ghc-show
Cloning into '/var/lib/mock/f31-build-54820-28063/root/chroot_tmpdir/scmroot/ghc-show'...
$ git reset --hard e9c43136d20b3bdc3761c6c19b40f4a78a3dda4c
HEAD is now at e9c4313 refresh to cabal-rpm-0.13