Issue #3215198 by phma: Thumbnail updates read width and height from source image on save even if queued

(cherry picked from commit 9edbbe5a04)

core/modules/media/src/Plugin/media/Source/Image.php

@@ -130,12 +130,13 @@ class Image extends File {
     }
 
     $uri = $file->getFileUri();
-    $image = $this->imageFactory->get($uri);
     switch ($name) {
       case static::METADATA_ATTRIBUTE_WIDTH:
+        $image = $this->imageFactory->get($uri);
         return $image->getWidth() ?: NULL;
 
       case static::METADATA_ATTRIBUTE_HEIGHT:
+        $image = $this->imageFactory->get($uri);
         return $image->getHeight() ?: NULL;
 
       case 'thumbnail_uri':