[2.1.3]

- Buggy treatment of end tags of elements that have required attributes fixed (does not manifest on default tag-set)
- Spurious internal content reorganization error suppressed
. Error unit tests can now specify the expectation of no errors. Future iterations of the harness will be extremely strict about what errors are allowed

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1424 48356398-32a2-884e-a903-53898d9a118a

library/HTMLPurifier/ChildDef/Optional.php

@@ -15,7 +15,10 @@ class HTMLPurifier_ChildDef_Optional extends HTMLPurifier_ChildDef_Required
     var $type = 'optional';
     function validateChildren($tokens_of_children, $config, &$context) {
         $result = parent::validateChildren($tokens_of_children, $config, $context);
-        if ($result === false) return array();
+        if ($result === false) {
+            if (empty($tokens_of_children)) return true;
+            else return array();
+        }
         return $result;
     }
 }