$ git clone -n https://src.fedoraproject.org/rpms/ghc-data-default-instances-containers.git /var/lib/mock/f31-build-54259-27980/root/chroot_tmpdir/scmroot/ghc-data-default-instances-containers
Cloning into '/var/lib/mock/f31-build-54259-27980/root/chroot_tmpdir/scmroot/ghc-data-default-instances-containers'...
$ git reset --hard 2ac460f7ca9f309373271fe98c192d2d64f68f59
HEAD is now at 2ac460f refresh to cabal-rpm-0.13