Ticket #16468: body_class.patch

src/wp-includes/post-template.php

@@ -615 +615 @@
         if ( !$page || $page < 2)
                 $page = $wp_query->get( 'paged' );
 
-        if ( $page && $page > 1 ) {
+        if ( ( $page && $page > 1 ) && ! is_404() ) {
                 $classes[] = 'paged-' . $page;
 
                 if ( is_single() )