lost message after Reconnect()

[qingyu-sama]

it's work

var ws = new(new Uri(config.CommanderAddress.WebSocketAddress));

ws.MessageReceived
		  .ObserveOn(TaskPoolScheduler.Default)
		  .Subscribe(OnMessage, OnError);
ws.DisconnectionHappened
		  .ObserveOn(TaskPoolScheduler.Default)
		  .Subscribe(OnClose, OnError);
ws.ReconnectionHappened
		  .ObserveOn(TaskPoolScheduler.Default)
		  .Subscribe(OnReconnection, OnError);

ws.Start();

when I call ws.Reconnect();
I can't received first message

Console.WriteLine("Refresh");
ws.Url = new Uri(config.CommanderAddress.WebSocketAddress);
ws.Reconnect();

Console:
(Frist message)
(Ping message)
...
Refresh
(Ping message)
...

when I call ws.Reconnect(); again
it's work

Console:
(Frist message)
(Ping message)
...
Refresh
(Ping message)
...
Refresh
(Frist message)
(Ping message)
...