$ git clone -n https://src.fedoraproject.org/rpms/ghc-JuicyPixels.git /var/lib/mock/f33-build-186144-45770/root/chroot_tmpdir/scmroot/ghc-JuicyPixels
Cloning into '/var/lib/mock/f33-build-186144-45770/root/chroot_tmpdir/scmroot/ghc-JuicyPixels'...
$ git reset --hard d55cb9d83e95fe97c4c0df24d6c27e15112cabf6
HEAD is now at d55cb9d update to 3.3.4