We can't use the upstream tarballs after 1.6.2 because they stopped pre-
generating CSS and we do not allow the sassc in the buildroot. Therefore,
we will continue to miss out on CSS changes which require re-generation.
This continues the effort to backport patches that do not effect CSS by
applying them ontop of the CSS that is already there pre-generated in
1.6.2.
Resolves: RHEL-122610
