message: fix(popoper): fix memory leak in popover
diff: @@ -182,12 +182,14 @@ export class PopoverDirective implements OnInit, OnDestroy {
  containerClass: this.containerClass
  });
  +
  if (!this.adaptivePosition) {
  this._positionService.calcPosition();
  this._positionService.deletePositionElement(this._popover._componentRef.location);
  }
  this.isOpen = true;
  + this.setAriaDescribedBy();
  };
  const cancelDelayedTooltipShowing = () => {
  @@ -218,8 +220,6 @@ export class PopoverDirective implements OnInit, OnDestroy {
  } else {
  showPopover();
  }
  - this.setAriaDescribedBy();
  - this.isOpen = true;
  }
  /**
  