Ticket #10713: 10713.3.patch

wp-includes/feed.php

@@ -642 +642 @@
          */
         do_action_ref_array( 'wp_feed_options', array( &$feed, $url ) );
         $feed->init();
+        $feed->set_output_encoding( get_option( 'blog_charset' ) ); 
         $feed->handle_content_type();
 
         if ( $feed->error() )