Ticket #48324: 48324.1.diff

src/wp-includes/media.php

@@ -220 +220 @@
         // If the file isn't an image, attempt to replace its URL with a rendered image from its meta.
         // Otherwise, a non-image type could be returned.
         if ( ! $is_image ) {
-                if ( ! empty( $meta['sizes'] ) ) {
+                if ( ! empty( $meta['sizes']['full'] ) ) {
                         $img_url          = str_replace( $img_url_basename, $meta['sizes']['full']['file'], $img_url );
                         $img_url_basename = $meta['sizes']['full']['file'];
                         $width            = $meta['sizes']['full']['width'];