$ git clone -n https://src.fedoraproject.org/rpms/ghc-clock.git /var/lib/mock/f31-build-54140-27959/root/thebuilddir/tmp/scmroot/ghc-clock
Cloning into '/var/lib/mock/f31-build-54140-27959/root/thebuilddir/tmp/scmroot/ghc-clock'...
$ git reset --hard 20a696b65a8e0d59d07d45ee94ec9c013d6da940
HEAD is now at 20a696b refresh to cabal-rpm-0.13