$ git clone -n https://src.fedoraproject.org/rpms/ghc-hjsmin.git /var/lib/mock/f31-build-54453-28004/root/chroot_tmpdir/scmroot/ghc-hjsmin
Cloning into '/var/lib/mock/f31-build-54453-28004/root/chroot_tmpdir/scmroot/ghc-hjsmin'...
$ git reset --hard e3f09eb4c0460a5b57b2f376e10ecfb159cc08a5
HEAD is now at e3f09eb refresh to cabal-rpm-0.13