$ git clone -n https://src.fedoraproject.org/rpms/ghc-IOSpec.git /var/lib/mock/f33-build-138798-42257/root/chroot_tmpdir/scmroot/ghc-IOSpec
Cloning into '/var/lib/mock/f33-build-138798-42257/root/chroot_tmpdir/scmroot/ghc-IOSpec'...
$ git reset --hard b95b32a4a03d283f3e03ff3586dbf5ead263414b
HEAD is now at b95b32a refresh to cabal-rpm-2.0.2