Akka.NET重复日志消息

Question

使用Akka.Event.Logging记录器时有一种奇怪的行为。这似乎在使用WARN或ERROR日志级别时两次吐出相同的日志消息，但在INFO和DEBUG中没有。不确定这是一个错误还是我遗漏了什么。以下是消息的示例代码和屏幕截图：

public class ImagePersistanceActor : ReceiveActor, ILogReceive
{
    LoggingAdapter log = Logging.GetLogger(Context);

    public ImagePersistanceActor()
    {
        Receive<string>(message =>
        {
            Console.WriteLine("Echo from Recieve actor: " + message);
        });

        Receive<Object>(unhandledMsg => {
            log.Warn("Unhandled message : " + unhandledMsg + " | Received at: " + DateTime.Now.Ticks);
            Console.WriteLine(unhandledMsg);
        });
    }
}

void main(){
       var receiveActor = system.ActorOf<ImagePersistanceActor>("receiveActor");
       receiveActor.Tell("Hello world");
       receiveActor.Tell(12233); //unhandled message
}

此处附带输出控制台屏幕截图：http://i.stack.imgur.com/3ReqJ.jpg