$ git clone -n https://src.fedoraproject.org/rpms/ghc-io-streams.git /var/lib/mock/f31-build-54490-28014/root/chroot_tmpdir/scmroot/ghc-io-streams
Cloning into '/var/lib/mock/f31-build-54490-28014/root/chroot_tmpdir/scmroot/ghc-io-streams'...
$ git reset --hard 7f7e136b6d512542ed339f29473284d8a6190372
HEAD is now at 7f7e136 refresh to cabal-rpm-0.13