Ticket #33641: 33641.5.patch

src/wp-includes/media.php

@@ -999 +999 @@
                 list( $img_width, $img_height ) = image_constrain_size_for_editor( $img['width'], $img['height'], $size );
         }
 
-        // Bail early if $image_width isn't set.
-        if ( ! $img_width ) {
+        // Bail early if $img_width isn't set.
+        if ( empty( $img_width ) ) {
                 return false;
         }