Bug 81078 [preferences] Restore Defaults duplicates list entries
I200412142000 Restore Defaults on Java > Editor > Appearance duplicates the "Appearance color options" entries.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/JavaEditorPreferencePage.java
private void initializeFields() {
		for (int i= 0; i < fConfigurationBlocks.length; i++) {
			fConfigurationBlocks[i].initialize();
		}
		
        fFieldsInitialized= true;
        
        updateStatus(new StatusInfo()); 
        
	}
	
	/*
	 * @see PreferencePage#performOk()
	 */
	public boolean performOk() {
		for (int i= 0; i < fConfigurationBlocks.length; i++) {
			fConfigurationBlocks[i].performOk();
		}
		fOverlayStore.propagate();
		JavaPlugin.getDefault().savePluginPreferences();
		return true;
	}
	
	/*
	 * @see PreferencePage#performDefaults()
	 */
	protected void performDefaults() {
		fOverlayStore.loadDefaults();
		
		for (int i= 0; i < fConfigurationBlocks.length; i++) {