Make sure to reindex parent period.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@12549 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/CalendarException.py

@@ -52,3 +52,9 @@ class CalendarException(XMLObject):
                     , PropertySheet.DublinCore
                     , PropertySheet.CalendarException
                     )
+
+  def reindexObject(self, *args, **kw):
+    """
+    Make sure to reindex the parent period
+    """
+    self.getParentValue().recursiveReindexObject()