logic: do not process exclude interests

refs: #4209, #4179

Change-Id: I74583d0d34d6e8db0cbfa844f5f47d4633f38849

src/logic.cpp

@@ -320,7 +320,8 @@ Logic::onSyncInterest(const Name& prefix, const Interest& interest)
   else if (name.size() >= 2 && RECOVERY_COMPONENT == name.get(-2)) {
     processRecoveryInterest(interest);
   }
-  else {
+  // Do not process exclude interests, they should be answered by CS
+  else if (interest.getExclude().empty()) {
     processSyncInterest(interest.shared_from_this());
   }