Function getParentModelGroupKey

renderer.js:19031–19033

(parentModel)

    }

    const validTs = thumbnails.filter(
      (t) => t && typeof t === 'string' && t.length > 0 && t !== '3d.png'
    );
    if (validTs.length !== thumbnails.length) {
      thumbnails = validTs;
      wrapper.dataset.thumbnails = JSON.stringify(thumbnails);