Provide route_math tag invalidation.

_tarik_ → changed the visibility of the branch 3409308-provide-routemath-tag to hidden.

_tarik_ → changed the visibility of the branch 3409308-provide-routemath-tag to active.

I have added a test.

@dabblela should get commit credit for issue 🐛 Cache not cleared for existing 404s Closed: duplicate (closed as duplicate)