Bug 99921 Empty working set name remains in working set group
3.1 RC3. If an empty working set is present (see bug ) the working set filter group always restores this one if none was selected before. I approve this one for 3.1 RC3 since the bug affects all JDT views and the fix is trivial. Dirk?
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/workingsets/WorkingSetFilterActionGroup.java
}
	
	/**
	 * Saves the state of the filter actions in a memento.
	 * 
	 * @param memento the memento
	 */
	public void saveState(IMemento memento) {
		String workingSetName= ""; 
		if (fWorkingSet != null)
			workingSetName= fWorkingSet.getName();
		memento.putString(TAG_WORKING_SET_NAME, workingSetName);
	}
	/**
	 * Restores the state of the filter actions from a memento.
	 * <p>
	 * Note: This method does not refresh the viewer.
	 * </p>
	 * @param memento
	 */	
	public void restoreState(IMemento memento) {
		String workingSetName= memento.getString(TAG_WORKING_SET_NAME);
		IWorkingSet ws= PlatformUI.getWorkbench().getWorkingSetManager().getWorkingSet(workingSetName);
		setWorkingSet(ws, false);
	}
	
	/* (non-Javadoc)
	 * @see ActionGroup#fillActionBars(IActionBars)
	 */
	public void fillActionBars(IActionBars actionBars) {