$ git clone -n https://src.fedoraproject.org/rpms/ghc-NumInstances.git /var/lib/mock/f33-build-138819-42259/root/chroot_tmpdir/scmroot/ghc-NumInstances
Cloning into '/var/lib/mock/f33-build-138819-42259/root/chroot_tmpdir/scmroot/ghc-NumInstances'...
$ git reset --hard f9ea9e6d16c28dd7482774cc6e49a6b3d3bc7abb
HEAD is now at f9ea9e6 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild