Not saving height and width?

As far as I can tell, assigning a focal point to an image doesn't save the height and width attributes of that image.

This came up while I was mangling the Single Content Sync → plugin, and observing that these attributes weren't appearing the export data, and thus when imported the focal points would get lost because the calculations for X and Y always used 0 as height and width values.

And when I examine the crop_field_data table, I observe that in fact those values are not populated.

It looks to me like the Crop → plugin does save the values, and when I take a look at this plugin I see this in FocalPointManager.php:

  public function saveCropEntity(float $x, float $y, int $width, int $height, CropInterface $crop): CropInterface {
    $absolute = $this->relativeToAbsolute($x, $y, $width, $height);

    $anchor = $crop->anchor();
    if ($anchor['x'] != $absolute['x'] || $anchor['y'] != $absolute['y']) {
      $crop->setPosition($absolute['x'], $absolute['y']);
      $crop->save();
    }

    return $crop;
  }

No height and width save there?

For now I've solved my immediate issue (I hope) by hacking single_content_sync, but this might need some examination here, unless I'm quite mistaken.