Ticket #29259: 29259.diff

wp-includes/post-template.php

@@ -471 +471 @@
                 $classes = array_merge($classes, $class);
         }
 
-        $classes = array_map('esc_attr', $classes);
-
         /**
          * Filter the list of CSS classes for the current post.
          *
@@ -484 +482 @@
          */
         $classes = apply_filters( 'post_class', $classes, $class, $post->ID );
 
+        $classes = array_map('esc_attr', $classes);
+
         return array_unique( $classes );
 }