Getting a weird issue i am using content maintenance dashboard package in umbraco 4.5.2 when i try to publish a doc i get error:

  Exception Details: System.ArgumentException: No User exists with ID -1

The code that does the publish is passed 0 as user id which is admin user however in 4.5.2 this does not work.

Has anyone else had issues trying to get the admin user in 4.5.2.  I updated the dashboard source code so it now does

            Document document = new Document(id);

            document.Publish(new User(document.Creator.Id));
            library.UpdateDocumentCache(document.Id);

and that works.  

Regards

Ismail