Should ActiveFedora::Associations::IndirectlyContainsAssociation#container use the options Hash to retrieve the predicate for inserted_content_relation

[jrgriffiniii]

An approach has been recommended in https://github.com/samvera/active_fedora/blob/master/spec/integration/indirect_container_spec.rb#L101:
options[:through].constantize._reflect_on_association(options[:foreign_key]).predicate

Might this may be integrated within:
https://github.com/samvera/active_fedora/blob/master/lib/active_fedora/associations/indirectly_contains_association.rb#L49?