ObjectDisposedException once in a while

https://github.com/sshnet/SSH.NET/blob/7691cb0b55f5e0de8dc2ad48dd824419471ab710/src/Renci.SshNet/ForwardedPortLocal.NET.cs#L63

We are seeing ObjectDisposedExceptions once in a while:

Frameworkversion: v4.0.30319
Beschreibung: Der Prozess wurde aufgrund einer unbehandelten Ausnahme beendet.
Ausnahmeinformationen: System.ObjectDisposedException
bei System.Net.Sockets.Socket.AcceptAsync(System.Net.Sockets.SocketAsyncEventArgs)
bei Renci.SshNet.ForwardedPortLocal.StartAccept(System.Net.Sockets.SocketAsyncEventArgs)
bei Renci.SshNet.ForwardedPortLocal.AcceptCompleted(System.Object, System.Net.Sockets.SocketAsyncEventArgs)
bei System.Net.Sockets.SocketAsyncEventArgs.OnCompleted(System.Net.Sockets.SocketAsyncEventArgs)
bei System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
bei System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
bei System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
bei System.Net.Sockets.SocketAsyncEventArgs.FinishOperationSuccess(System.Net.Sockets.SocketError, Int32, System.Net.Sockets.SocketFlags)
bei System.Net.Sockets.SocketAsyncEventArgs.CompletionPortCallback(UInt32, UInt32, System.Threading.NativeOverlapped*)
bei System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32, UInt32, System.Threading.NativeOverlapped*)

These exceptions should be prevented in SSH.Net by catching the exception and ignoring it if the status is Stopped or Stopping. The status is set to Stopping before the _listener is disposed.
However, the status is checked for Stopped twice, instead of Stopping or Stopped. This is a simple oversight.

Same thing in ForwardedPortDynamic.NET.cs

Start in src/Renci.SshNet/ForwardedPortLocal.NET.cs at StartAccept and inspect the status check around listener disposal, then compare the corresponding logic in ForwardedPortDynamic.NET.cs. Reproduce or reason through an accept completion during shutdown; done means shutdown-time ObjectDisposedException instances are prevented in both forwarded-port implementations.