98b3ced5_ebruary_23__2012_Release_Notes__Issue_Summary
[Notes] Instructors are still able to enter QIDs, but cannot update an assignment when it includes an invalid QID. A message in the Question Browser identifies which QIDs are invalid. LEGO-2, FTWO-335, Dev-876 [Issue Summary] 
Instructors were able to use the QID List in the Question Browser to enter invalid QIDs.
February 23, 2012 Release Notes
Issue Summary