Index: widgets.php
===================================================================
--- widgets.php	(revision 11096)
+++ widgets.php	(working copy)
@@ -167,7 +167,7 @@
 		if ( array_key_exists( $this->number, $settings ) ) {
             $settings = $settings[$this->number];
 			// filters the widget's settings, return false to stop displaying the widget
-			$settings = apply_filters('widget_display_callback', $settings, &$this);   
+			$settings = apply_filters('widget_display_callback', $settings, $this);
             if ( false !== $settings )
 				$this->widget($args, $settings);
         }
@@ -228,7 +228,7 @@
 						$instance = $this->update($new_instance, array());
 
 					// filters the widget's settings before saving, return false to cancel saving (keep the old settings if updating)
-					$instance = apply_filters('widget_update_callback', $instance, $new_instance, &$this);
+					$instance = apply_filters('widget_update_callback', $instance, $new_instance, $this);
 					if ( false !== $instance )
 						$all_instances[$number] = $instance;
 				}
@@ -258,7 +258,7 @@
 		}
 
 		// filters the widget admin form before displaying, return false to stop displaying it
-		$instance = apply_filters('widget_form_callback', $instance, &$this);
+		$instance = apply_filters('widget_form_callback', $instance, $this);
 		if ( false !== $instance )
 			$this->form($instance);
 	}
@@ -277,7 +277,7 @@
 
 	function get_settings() {
 		$settings = get_option($this->option_name);
-		
+
 		if ( false === $settings && isset($this->alt_option_name) )
 			$settings = get_option($this->alt_option_name);
 
@@ -801,7 +801,7 @@
  * in which the first instance of the widget with the given callback or $id_base is found.
  * With the $widget_id parameter, returns the ID of the sidebar where
  * the widget with that callback/$id_base AND that ID is found.
- * 
+ *
  * NOTE: $widget_id and $id_base are the same for single widgets. To be effective
  * this function has to run after widgets have initialized, at action 'init' or later.
  *
@@ -1021,7 +1021,7 @@
 				$GLOBALS['_wp_sidebars_widgets'] = get_option('sidebars_widgets');
 			$sidebars_widgets = &$GLOBALS['_wp_sidebars_widgets'];
 		}
-		
+
 		foreach ( (array) $sidebars_widgets as $index => $sidebar ) {
 			if ( is_array($sidebar) ) {
 				foreach ( $sidebar as $i => $name ) {