We have a List view using the Method for Workflow Reporting Service (List) : List Activity Instance Destinations and the Finish Date shows 1/1/1900. When I go into the view and attempt to create an expression to replace the 1/1/1900 to a null value the field is locked out and says I can't use it because of circular references.
Is there a way to make that show as null if it hasn't been updated ?