model: Add ability to get pointer to Fib from fib::Entry
diff --git a/model/fib/ndn-fib-impl.cc b/model/fib/ndn-fib-impl.cc
index 218502b..ccc4f10 100644
--- a/model/fib/ndn-fib-impl.cc
+++ b/model/fib/ndn-fib-impl.cc
@@ -112,9 +112,9 @@
     {
       if (result.second)
         {
-            Ptr<EntryImpl> newEntry = Create<EntryImpl> (prefix);
-            newEntry->SetTrie (result.first);
-            result.first->set_payload (newEntry);
+          Ptr<EntryImpl> newEntry = Create<EntryImpl> (this, prefix);
+          newEntry->SetTrie (result.first);
+          result.first->set_payload (newEntry);
         }
   
       super::modify (result.first,