Fix threading issue with GetRolesForProperty.
Fix threading issue with GetRolesForProperty.

rockfordlhotka/csla,rockfordlhotka/csla,BrettJaner/csla,MarimerLLC/csla,jonnybee/csla,jonnybee/csla,rockfordlhotka/csla,ronnymgm/csla-light,BrettJaner/csla,BrettJaner/csla,MarimerLLC/csla,ronnymgm/csla-light,JasonBock/csla,JasonBock/csla,jonnybee/csla,MarimerLLC/csla,ronnymgm/csla-light,JasonBock/csla