title: EntityRefs and EntitySets - When are they retrieved?
body: <p>Assume I have an entity named "A" that contains an EntityRef and an EntitySet. I'm curious as to exactly when, by default, the EntityRef and EntitySet are retrieved when "A" is retrieved from the database? It seems, from my experimentation, that the EntityRef is retrieved at the same time entity "A" is retrieved from the database and the EntitySet is retrieved when I starting iterating over the EntitySet entities. Is this correct?</p>
  
  <p>Thanks - Randy</p>