Ticket #2634: thorn.diff

wp-includes/functions-formatting.php

@@ -41 +41 @@
                 } else {
                         $next = true;
                 }
-                $curl = preg_replace('/&([^#])(?![a-z1-4]{1,8};)/', '&$1', $curl);
+                $curl = preg_replace('/&([^#])(?![a-zA-Z1-4]{1,8};)/', '&$1', $curl);
                 $output .= $curl;
         }
         return $output;