Use correct array key for filling the attachment title in image_attachment_fields_to_save(). props pross.
Use wp_basename() to avoid issues with UTF-8 characters.
fixes #25236.
Built from https://develop.svn.wordpress.org/trunk@25277


git-svn-id: http://core.svn.wordpress.org/trunk@25242 1a063a9b-81f0-0310-95a4-ce76da25c4cd