Disconnect freeze on .NET CORE 3.1 (MAC, Forward Port)

I got freeze after try to disconnect with forward port.

ChannelDirectTcpip.cs

private void ForwardedPort_Closing(object sender, EventArgs eventArgs)
{
    // signal to the client that we will not send anything anymore; this should also interrupt the
    // blocking receive in Bind if the client sends FIN/ACK in time
    ShutdownSocket(SocketShutdown.Send);

    // if the FIN/ACK is not sent in time by the remote client, then interrupt the blocking receive
    // by closing the socket
    CloseSocket();
}

After debug, it freeze on CloseSocket() -> _socket.Dispose()

My solution:
I change
ShutdownSocket(SocketShutdown.Send)
to
ShutdownSocket(SocketShutdown.Both)

Please fix this issue. I don't want to include SSH.NET source code on my project.

Start in ChannelDirectTcpip.cs at ForwardedPort_Closing and trace ShutdownSocket and CloseSocket, especially the _socket.Dispose() call reported to freeze. Reproduce the disconnect with a forward port on .NET Core 3.1 on macOS, then verify that the freeze no longer occurs and add or update coverage for the closing path.