$ git clone -n https://src.fedoraproject.org/rpms/ghc-tagged.git /var/lib/mock/f31-build-54871-28069/root/chroot_tmpdir/scmroot/ghc-tagged
Cloning into '/var/lib/mock/f31-build-54871-28069/root/chroot_tmpdir/scmroot/ghc-tagged'...
$ git reset --hard 9f628ddf96c8ef81f8aef82135ae854ab3df7bdd
HEAD is now at 9f628dd refresh to cabal-rpm-0.13