Bug 46462 [RCP] [Preferences] Workbench switches to double click on each startup
N20031111 I use an pre-RCP workspace. On each startup I have to switch to single mode again.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/IDEWorkbenchPreferencePage.java
}
	
	/**
	 * The default button has been pressed. 
	 */
	protected void performDefaults() {
		
		boolean autoBuild = ResourcesPlugin.getPlugin().getPluginPreferences().getDefaultBoolean(ResourcesPlugin.PREF_AUTO_BUILDING);
		autoBuildButton.setSelection(autoBuild);
		
		IPreferenceStore store = getIDEPreferenceStore();
		autoSaveAllButton.setSelection(store.getDefaultBoolean(IDEInternalPreferences.SAVE_ALL_BEFORE_BUILD));
		refreshButton.setSelection(store.getDefaultBoolean(IDEInternalPreferences.REFRESH_WORKSPACE_ON_STARTUP));
		
		showTasks.setSelection(store.getBoolean(IDEInternalPreferences.SHOW_TASKS_ON_BUILD));
		saveInterval.loadDefault();
		
		super.performDefaults();
	}
	/**
	 *	The user has pressed Ok.  Store/apply this page's values appropriately.
	 */
	public boolean performOk() {
		
		IWorkspaceDescription description = ResourcesPlugin.getWorkspace().getDescription();
		if (autoBuildButton.getSelection() != ResourcesPlugin.getWorkspace().isAutoBuilding()) {
			try {
				description.setAutoBuilding(autoBuildButton.getSelection());
				ResourcesPlugin.getWorkspace().setDescription(description);
			} catch (CoreException e) {