message: Add model changes tests
diff: @@ -185,8 +185,6 @@ export class NgSelectComponent implements OnInit, OnChanges, ControlValueAccesso
  } else {
  this._value = null;
  }
  -
  - this.changeDetectorRef.markForCheck();
  }
  registerOnChange(fn: any): void {
  @@ -241,7 +239,7 @@ export class NgSelectComponent implements OnInit, OnChanges, ControlValueAccesso
  this.close();
  this.notifyModelChanged();
  - console.log('select', this._value);
  + this.changeDetectorRef.markForCheck();
  }
  showPlaceholder() {
  