title: Why does Spring Data REST include "duplicate" links?
body: <p>Hi I am using spring data rest and Ihave a weird issue when I am using  PagingAndSortingRepository the response I get has a _self link as expected but with it also gives a duplicate link of the same entity hf:foo as evindent in the below response.</p>
  
  <p><em>dupicate links</em> 
  <strong>"self" : { "href" : "<a href="http://localhost:8080/foos/8445" rel="noreferrer">http://localhost:8080/foos/8445</a>"
              } and "hf:foo" : {
                "href" : "<a href="http://localhost:8080/foos/8445" rel="noreferrer">http://localhost:8080/foos/8445</a>"</strong></p>
  
  <pre><code>  curl http://localhost:8080/foos?page=0&amp;size=1
  
          {
        "_links" : {
      "first" : {
        "href" : "http://localhost:8080/foos?page=0&amp;size=1"
      },
      "prev" : {
        "href" : "http://localhost:8080/foos?page=0&amp;size=1"
      },
      "self" : {
        "href" : "http://localhost:8080/foos"
      },
      "next" : {
        "href" : "http://localhost:8080/foos?page=2&amp;size=1"
      },
      "last" : {
        "href" : "http://localhost:8080/foos?page=81&amp;size=1"
      }
    },
    "_embedded" : {
      "hf:foos" : [ {
        "name" : "comsi",
        "_links" : {
          "self" : {
            "href" : "http://localhost:8080/foos/8445"
          },
          "hf:foo" : {
            "href" : "http://localhost:8080/foos/8445"
          } ]
        }
      } ]
    },
    "page" : {
      "size" : 1,
      "totalElements" : 82,
      "totalPages" : 82,
      "number" : 1
    }
  }
  </code></pre>
  
  <p>please help .Is it an issue with the curie namespace .</p>