message: Treat fork as system message.
diff: @@ -5,5 +5,6 @@ export function isSystemType(type: string) {
  type === MessageType.RemoteHelp ||
  type === MessageType.Integrate ||
  type === MessageType.ClientJoin ||
  - type === MessageType.ClientLeave);
  + type === MessageType.ClientLeave ||
  + type === MessageType.Fork);
  }
  