$ git clone -n https://src.fedoraproject.org/rpms/ghc-entropy.git /var/lib/mock/f33-build-139289-42333/root/chroot_tmpdir/scmroot/ghc-entropy
Cloning into '/var/lib/mock/f33-build-139289-42333/root/chroot_tmpdir/scmroot/ghc-entropy'...
$ git reset --hard cde4451746a18189cdf09cd043c49c526ebcb503
HEAD is now at cde4451 update to 0.4.1.5