Do not queue VERIFY objectives

Change-Id: If53738aa3fbe89396bffcc95543a07e9f879c6cb
diff --git a/core/net/src/main/java/org/onosproject/net/flowobjective/impl/FlowObjectiveManager.java b/core/net/src/main/java/org/onosproject/net/flowobjective/impl/FlowObjectiveManager.java
index 1e3b2a8..4567415 100644
--- a/core/net/src/main/java/org/onosproject/net/flowobjective/impl/FlowObjectiveManager.java
+++ b/core/net/src/main/java/org/onosproject/net/flowobjective/impl/FlowObjectiveManager.java
@@ -265,6 +265,7 @@
     public void next(DeviceId deviceId, NextObjective nextObjective) {
         checkPermission(FLOWRULE_WRITE);
         if (nextObjective.op() == Operation.ADD ||
+                nextObjective.op() == Operation.VERIFY ||
                 flowObjectiveStore.getNextGroup(nextObjective.id()) != null ||
                 !queueNextObjective(deviceId, nextObjective)) {
             // either group exists or we are trying to create it - let it through