Simplify ensure_option_types_exist_for_values_hash
Simplify ensure_option_types_exist_for_values_hash

We can let ActiveRecord do this work for us. This has the added benefit
of working around a spec failure in rails 5, which now memoizes results
of association_ids.

pervino/solidus,pervino/solidus,pervino/solidus,Arpsara/solidus,Arpsara/solidus,Arpsara/solidus,pervino/solidus,Arpsara/solidus