Bug in opcConnectionImpl fix() about opc HOT 3 CLOSED

//fix tries to reconnect if connection is lost by creating a new connection
//with AutomationObject and creating a new AutomationItems instance.
func (conn *opcConnectionImpl) fix() {
	var err error
	var tags []string
	if !conn.IsConnected() {
		for {
			if conn.AutomationItems != nil {
				tags = conn.Tags()
				conn.AutomationItems.Close()
			}
			conn.AutomationItems, err = conn.TryConnect(conn.Server, conn.Nodes)
			if err != nil {
				logger.Println(err)
				time.Sleep(100 * time.Millisecond)
				continue
			}

			if conn.Add(tags...) == nil {
				logger.Printf("Added %d tags", len(tags))
			}
			break
		}
	}
}