Design a Model should have Is a Model checked initially

(Bug, Closed -> Fixed, Priority: High, Test Status: No automated tests yet , Reported By Justin du Coeur, )
Editor
Summary: I think this one in annoying enough to qualify as a design bug. When Models and Instances came from the same menu pick it was necessary to select Is a Model manually, but that's no longer true. The Design a Model menu pick should set Is a Model when the page shows up.