title: Should rest resource have same structure in collection
body: <p>I found question about subset of REST when display resource by <code>GET /task/ID</code> and as row in collection <code>GET /task</code>.
  <a href="https://stackoverflow.com/questions/17408770/rest-resource-and-collection-representations">REST - Resource and Collection Representations</a></p>
  
  <p>I'm using Apigility.</p>
  
  <p>I know REST is not official, but want to hold as strict as could with overall best practice/standard.</p>
  
  <p>Can i have others fields in collection and resource. Of cource part will be the same, but for collection i need some extra information for filtering and in resource there is now need for them.</p>
  
  <p>Is this will breaking in any way some rules?</p>