Portage is allowed to schedule qtdeclarative before qtbase here,
but this result in a build failure as it needs an accompanying
change added in the latest qtbase revision.
Sparing revbump rebuilds given downgrading to a not-in-tree revision
after successfully building would be quite the edge case.
Thanks-to: Sam James <sam@gentoo.org>
Signed-off-by: Ionen Wolkens <ionen@gentoo.org>