nodeport 's connections operation code maybe has some problem

[wildfire2015]

ex:

public void AddConnections(NodePort targetPort) 
{
            int connectionCount = targetPort.ConnectionCount;
            for (int i = 0; i < connectionCount; i++) {
                PortConnection connection = targetPort.connections[i];
                NodePort otherPort = connection.Port;
                Connect(otherPort);
            }
}

when targetport 's connections to port,has some overrider port,connect will reduce the targetport.connections

public void MoveConnections(NodePort targetPort)
 {
            int connectionCount = connections.Count;

            // Add connections to target port
            for (int i = 0; i < connectionCount; i++) {
                PortConnection connection = targetPort.connections[i];
                NodePort otherPort = connection.Port;
                Connect(otherPort);
            }
            ClearConnections();
 }

when targetPort has no connections ,will get a exception