views: Add fall-through safety for assignment_selection
views: Add fall-through safety for assignment_selection

Basically "else: pass" - just in case.

pbanaszkiewicz/amy,swcarpentry/amy,vahtras/amy,swcarpentry/amy,vahtras/amy,swcarpentry/amy,pbanaszkiewicz/amy,pbanaszkiewicz/amy,vahtras/amy