LocalizationList and StateList endpoints can be confusing with inherited layers

[bctcvai]

If layers derive off of one another, it is currently expected that client side code explicitly asks for all layers in a GET request to LocalizationList or StateList.

1.) Evaluate whether this makes sense or if derived layers should be automatically appended. Then a.) Document endpoint with an example showing fetching a versioned layer so the explicit nature of the fetch is obvious. or, b.) Document how to fetch just a single layer if that is what you are after if the implemented behavior is changed (e.g. only specified layer flag)

[jrtcppv]

Localizations and States endpoints should include a base_layers parameter that enables server-side lookup and return of parent versions. This would spare us from doing recursive version object inspection without breaking backward compatibility.