$ git clone -n https://src.fedoraproject.org/rpms/gtk2hs-buildtools.git /var/lib/mock/f33-build-143330-42850/root/chroot_tmpdir/scmroot/gtk2hs-buildtools
Cloning into '/var/lib/mock/f33-build-143330-42850/root/chroot_tmpdir/scmroot/gtk2hs-buildtools'...
$ git reset --hard fb4f070ecdb24148df2d287bc294800fa3a1fa49
HEAD is now at fb4f070 update to 0.13.8.0