Index: wp-includes/post.php
===================================================================
--- wp-includes/post.php	(revision 13398)
+++ wp-includes/post.php	(working copy)
@@ -240,7 +240,7 @@
  * @param string $output Optional. Constant for return type, either OBJECT (default), ARRAY_A, ARRAY_N.
  * @return array|bool False on failure and the type will be determined by $output parameter.
  */
-function &get_children($args = '', $output = OBJECT) {
+function get_children($args = '', $output = OBJECT) {
 	$kids = array();
 	if ( empty( $args ) ) {
 		if ( isset( $GLOBALS['post'] ) ) {
@@ -269,7 +269,7 @@
 	update_post_cache($children);
 
 	foreach ( $children as $key => $child )
-		$kids[$child->ID] =& $children[$key];
+		$kids[$child->ID] = $children[$key];
 
 	if ( $output == OBJECT ) {
 		return $kids;
Index: wp-content/themes/twentyten/loop.php
===================================================================
--- wp-content/themes/twentyten/loop.php	(revision 13398)
+++ wp-content/themes/twentyten/loop.php	(working copy)
@@ -30,7 +30,7 @@
 		<div class="entry-content">
 			<div class="gallery-thumb">
 				<a class="size-thumbnail" href="<?php the_permalink(); ?>"><?php
-				$images =& get_children( array('post_parent' => $post->ID, 'post_type' => 'attachment', 'post_mime_type' => 'image', 'orderby' => 'menu_order', 'order' => 'ASC', 'numberposts' => 999) );
+				$images = get_children( array('post_parent' => $post->ID, 'post_type' => 'attachment', 'post_mime_type' => 'image', 'orderby' => 'menu_order', 'order' => 'ASC', 'numberposts' => 999) );
 				$total_images = count($images);
 				$image = array_shift($images);
 				echo wp_get_attachment_image( $image->ID, 'thumbnail' );
@@ -124,4 +124,4 @@
 					<div class="nav-previous"><?php next_posts_link(__( '<span class="meta-nav">&larr;</span> Older posts', 'twentyten' )); ?></div>
 					<div class="nav-next"><?php previous_posts_link(__( 'Newer posts <span class="meta-nav">&rarr;</span>', 'twentyten' )); ?></div>
 				</div><!-- #nav-below -->
-<?php } ?>
\ No newline at end of file
+<?php } ?>