explain execute transition patch purpose

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@4985 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/patches/DCWorkflow.py

@@ -106,6 +106,9 @@ DCWorkflow.ValidationFailed = ValidationFailed
 ModuleSecurityInfo('Products.DCWorkflow.DCWorkflow').declarePublic('ValidationFailed')
 
 
+ 
+# Patch excecuteTransition from DCWorkflowDefinition, to put ValidationFailed 
+# error messages in workflow history.
 def DCWorkflowDefinition_executeTransition(self, ob, tdef=None, kwargs=None):
     '''
     Private method.