Clear System VM IP from NICs for PublicNetworkGuru (apache#11992)

Author: Pearl1594

engine/orchestration/src/main/java/org/apache/cloudstack/engine/orchestration/NetworkOrchestrator.java

@@ -2326,7 +2326,8 @@ public void prepareAllNicsForMigration(final VirtualMachineProfile vm, final Dep
             for (final NetworkElement element : networkElements) {
                 if (providersToImplement.contains(element.getProvider())) {
                     if (!_networkModel.isProviderEnabledInPhysicalNetwork(_networkModel.getPhysicalNetworkId(network), element.getProvider().getName())) {
-                        throw new CloudRuntimeException(String.format("Service provider %s either doesn't exist or is not enabled in physical network: %s", element.getProvider().getName(), _physicalNetworkDao.findById(network.getPhysicalNetworkId())));
+                        throw new CloudRuntimeException(String.format("Service provider %s either doesn't exist or is not enabled in physical network: %s",
+                                element.getProvider().getName(), _physicalNetworkDao.findById(network.getPhysicalNetworkId())));
                     }
                     if (element instanceof NetworkMigrationResponder) {
                         if (!((NetworkMigrationResponder) element).prepareMigration(profile, network, vm, dest, context)) {
@@ -2633,6 +2634,10 @@ && isDhcpAccrossMultipleSubnetsSupported(dhcpServiceProvider)) {
 
         final NetworkGuru guru = AdapterBase.getAdapterByName(networkGurus, network.getGuruName());
         guru.deallocate(network, profile, vm);
+        if (nic.getReservationStrategy() == Nic.ReservationStrategy.Create) {
+            applyProfileToNicForRelease(nic, profile);
+            _nicDao.update(nic.getId(), nic);
+        }
         if (BooleanUtils.isNotTrue(preserveNics)) {
             _nicDao.remove(nic.getId());
         }