call the send method on parent class

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@20855 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/Event.py

@@ -114,5 +114,5 @@ class Event(EmailDocument, Movement):
       """
       send_script = self._getTypeBasedMethod('send')
       if send_script is None:
-        return self.send(*args, **kw)
-      return send_script(*args, **kw)
+        return EmailDocument.send(self, *args, **kw)
+      return send_script(*args, **kw)
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