Today, when we cache a resource, we also cache every children or nested resource we find in the current graph. For example:

inbox 
  notification-1
    object-1
  notification-2
    object-1

If we GET inbox -> we cache inbox, notification-1, object-1 and notification-2.

When we clear the cache, it clears only the requested container/resource. Let's say we want to clear the inbox cache, we then have

inbox             CLEARED
  notification-1  NOT CLEARED
    object-1      NOT CLEARED
  notification-2  NOT CLEARED
    object-1      NOT CLEARED

Are we supposed to loop over the graph when we clear the cache to also clear all the nested objects? Or should we just override the cache with the new datas? And then, how do we know when to do so?

Any idea @sylvain @balessan @clement ?