PhpOffice\PhpPresentation\AbstractShape::__clone PHP Method

    public function __clone()
    {
        $this->container = null;
        $this->fill = clone $this->fill;
        $this->border = clone $this->border;
        $this->shadow = clone $this->shadow;
    }

 public function __clone()
 {
     parent::__clone();
     self::$imageCounter++;
     $this->imageIndex = self::$imageCounter;
 }