Patient Search Timeout Error Handling

When the OpenMRS patient search screen is left open, the session times out. Good. But, when the user returns back to the computer, and types a name to search for, it is not obvious that their session has expired, but rather looks like there are just no patients for that search. It displays a small error in the status bar, "DWR warning/error: Privileges Required: [Patients|View]". Rather than this error, it should display the standard: "You must log in to continue" error and prompt for the username and password box to log in again. This is the way it is handled in other areas in the interface.