Ticket #11219: 10877.diff

wp-includes/class-simplepie.php

@@ -9411 +9411 @@
                 $input = SimplePie_Misc::encoding($input);
                 $output = SimplePie_Misc::encoding($output);
 
+                // Nothing to change?
+                if ( $input == $output )
+                        return $data;
+
                 // We fail to fail on non US-ASCII bytes
                 if ($input === 'US-ASCII')
                 {