title: Redux: is state normalization necessary for composition relationship?
body: <p>As we know, when saving data in a redux store, it's supposed to be transformed into a normalized state. So embedded objects should be replaced by their ids and saved within a dedicated collection in the store.</p>
  
  <p>I am wondering, if that also should be done if the relationship is a composition? That means, the <strong>embedded data isn't of any use outside of the parent object</strong>.</p>
  
  <p>In my case the embedded objects are <em>registrations</em>, and the parent object is a (real life) <em>event</em>. Normalizing this data structure to me feels like a lot of boilerplate without any benefit.</p>