Index: wp-admin/includes/schema.php
===================================================================
--- wp-admin/includes/schema.php	(revision 9893)
+++ wp-admin/includes/schema.php	(working copy)
@@ -351,7 +351,7 @@
 	add_role('subscriber', 'Subscriber|User role');
 
 	// Add caps for Administrator role
-	$role = get_role('administrator');
+	$role =& get_role('administrator');
 	$role->add_cap('switch_themes');
 	$role->add_cap('edit_themes');
 	$role->add_cap('activate_plugins');
@@ -384,7 +384,7 @@
 	$role->add_cap('level_0');
 
 	// Add caps for Editor role
-	$role = get_role('editor');
+	$role =& get_role('editor');
 	$role->add_cap('moderate_comments');
 	$role->add_cap('manage_categories');
 	$role->add_cap('manage_links');
@@ -406,7 +406,7 @@
 	$role->add_cap('level_0');
 
 	// Add caps for Author role
-	$role = get_role('author');
+	$role =& get_role('author');
 	$role->add_cap('upload_files');
 	$role->add_cap('edit_posts');
 	$role->add_cap('edit_published_posts');
@@ -417,14 +417,14 @@
 	$role->add_cap('level_0');
 
 	// Add caps for Contributor role
-	$role = get_role('contributor');
+	$role =& get_role('contributor');
 	$role->add_cap('edit_posts');
 	$role->add_cap('read');
 	$role->add_cap('level_1');
 	$role->add_cap('level_0');
 
 	// Add caps for Subscriber role
-	$role = get_role('subscriber');
+	$role =& get_role('subscriber');
 	$role->add_cap('read');
 	$role->add_cap('level_0');
 }
@@ -437,7 +437,7 @@
 function populate_roles_210() {
 	$roles = array('administrator', 'editor');
 	foreach ($roles as $role) {
-		$role = get_role($role);
+		$role =& get_role($role);
 		if ( empty($role) )
 			continue;
 
@@ -458,19 +458,19 @@
 		$role->add_cap('read_private_pages');
 	}
 
-	$role = get_role('administrator');
+	$role =& get_role('administrator');
 	if ( ! empty($role) ) {
 		$role->add_cap('delete_users');
 		$role->add_cap('create_users');
 	}
 
-	$role = get_role('author');
+	$role =& get_role('author');
 	if ( ! empty($role) ) {
 		$role->add_cap('delete_posts');
 		$role->add_cap('delete_published_posts');
 	}
 
-	$role = get_role('contributor');
+	$role =& get_role('contributor');
 	if ( ! empty($role) ) {
 		$role->add_cap('delete_posts');
 	}
@@ -482,7 +482,7 @@
  * @since 2.3.0
  */
 function populate_roles_230() {
-	$role = get_role( 'administrator' );
+	$role =& get_role( 'administrator' );
 
 	if ( !empty( $role ) ) {
 		$role->add_cap( 'unfiltered_upload' );
@@ -495,7 +495,7 @@
  * @since 2.5.0
  */
 function populate_roles_250() {
-	$role = get_role( 'administrator' );
+	$role =& get_role( 'administrator' );
 
 	if ( !empty( $role ) ) {
 		$role->add_cap( 'edit_dashboard' );
@@ -508,7 +508,7 @@
  * @since 2.6.0
  */
 function populate_roles_260() {
-	$role = get_role( 'administrator' );
+	$role =& get_role( 'administrator' );
 
 	if ( !empty( $role ) ) {
 		$role->add_cap( 'update_plugins' );
@@ -522,7 +522,7 @@
  * @since 2.7.0
  */
 function populate_roles_270() {
-	$role = get_role( 'administrator' );
+	$role =& get_role( 'administrator' );
 
 	if ( !empty( $role ) ) {
 		$role->add_cap( 'install_plugins' );
Index: wp-includes/capabilities.php
===================================================================
--- wp-includes/capabilities.php	(revision 9893)
+++ wp-includes/capabilities.php	(working copy)
@@ -533,7 +533,7 @@
 		//Build $allcaps from role caps, overlay user's $caps
 		$this->allcaps = array();
 		foreach ( (array) $this->roles as $role ) {
-			$role = $wp_roles->get_role( $role );
+			$role =& $wp_roles->get_role( $role );
 			$this->allcaps = array_merge( $this->allcaps, $role->capabilities );
 		}
 		$this->allcaps = array_merge( $this->allcaps, $this->caps );