ДГ
if ( is_array( $args[0] ) && isset( $_wp_theme_features['post-thumbnails'] ) ) {
$args[0] = array_unique( array_merge( $_wp_theme_features['post-thumbnails'][0], $args[0] ) );
}
$args[0] = array_unique( array_merge( $_wp_theme_features['post-thumbnails'][0], $args[0] ) );
}
