I don’t know why, but now, WordPress is adding a suffix “-scaled” at the end of each newly uploaded image.

And, instead of keeping the original image link, it changes it to the “-scaled” version:

I found the culprit in /wp-admin/includes/image.php which has this:

        if ( ! is_wp_error( $resized ) ) {
            // Append "-scaled" to the image file name. It will look like "my_image-scaled.jpg".
            // This doesn't affect the sub-sizes names as they are generated from the original image (for best quality).
            $saved = $editor->save( $editor->generate_filename( 'scaled' ) );

How to get rid of this behavior?