message: fix(dropdown): fix ngv4 dropdowns
diff: @@ -44,7 +44,7 @@ export class BsDropdownToggleDirective implements OnDestroy {
  if (this.isDisabled) {
  return;
  }
  - this._state.toggleClick.emit();
  + this._state.toggleClick.emit(true);
  }
  @HostListener('document:click', ['$event'])
  