message: Initialize default change fn
diff: @@ -84,7 +84,7 @@ export class NgSelectComponent implements OnInit, ControlValueAccessor {
  private _openClicked = false;
  private _items: NgOption[];
  - private propagateChange: (_: NgOption) => { };
  + private propagateChange = (_: NgOption) => { };
  constructor(private changeDetectorRef: ChangeDetectorRef, private elementRef: ElementRef) {
  }
  