face: Invoke NackCallback on all matching Interests

Change-Id: I7fd2b6456f9d3b83dafde4348c90bad9acd500f6
Refs: #3908
diff --git a/src/detail/face-impl.hpp b/src/detail/face-impl.hpp
index 9ce4a69..bb454d1 100644
--- a/src/detail/face-impl.hpp
+++ b/src/detail/face-impl.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2013-2016 Regents of the University of California.
+ * Copyright (c) 2013-2017 Regents of the University of California.
  *
  * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
  *
@@ -136,7 +136,7 @@
   {
     for (auto entry = m_pendingInterestTable.begin(); entry != m_pendingInterestTable.end(); ) {
       const Interest& pendingInterest = *(*entry)->getInterest();
-      if (pendingInterest == nack.getInterest()) {
+      if (nack.getInterest().matchesInterest(pendingInterest)) {
         shared_ptr<PendingInterest> matchedEntry = *entry;
         entry = m_pendingInterestTable.erase(entry);
         matchedEntry->invokeNackCallback(nack);