message: fix: eventful silent logic bug
diff: @@ -128,7 +128,7 @@ Eventful.prototype = {
  */
  isSilent: function (event) {
  var _h = this._$handlers;
  - return _h[event] && _h[event].length;
  + return !_h[event] || !_h[event].length;
  },
  /**
  