fw: AccessStrategy avoid loop back new Interest

refs #2831

Change-Id: I1680fd62cdf8f11eaa7817dd6d4b7794c305c5eb
diff --git a/daemon/fw/access-strategy.cpp b/daemon/fw/access-strategy.cpp
index 3c1f01a..5489837 100644
--- a/daemon/fw/access-strategy.cpp
+++ b/daemon/fw/access-strategy.cpp
@@ -97,8 +97,8 @@
 
   // no measurements, or last working nexthop unavailable
 
-  // multicast to all nexthops
-  this->multicast(pitEntry, fibEntry);
+  // multicast to all nexthops except incoming face
+  this->multicast(pitEntry, fibEntry, {inFace.getId()});
 }
 
 void
@@ -108,7 +108,7 @@
                                          shared_ptr<pit::Entry> pitEntry)
 {
   NFD_LOG_DEBUG(interest << " interestFrom " << inFace.getId() << " retx-forward");
-  this->multicast(pitEntry, fibEntry, std::unordered_set<FaceId>{inFace.getId()});
+  this->multicast(pitEntry, fibEntry, {inFace.getId()});
 }
 
 bool
@@ -167,7 +167,7 @@
 
   NFD_LOG_DEBUG(pitEntry->getInterest() << " timeoutFrom " << firstOutFace <<
                 " multicast-except " << inFace << ',' << firstOutFace);
-  this->multicast(pitEntry, fibEntry, std::unordered_set<FaceId>{inFace, firstOutFace});
+  this->multicast(pitEntry, fibEntry, {inFace, firstOutFace});
 }
 
 void