Index: wp-includes/post.php
===================================================================
--- wp-includes/post.php	(revision 48099)
+++ wp-includes/post.php	(working copy)
@@ -6722,6 +6722,9 @@
 	}
 
 	foreach ( $posts as $post ) {
+		if ( empty( $post->filter ) ) {
+			$post = sanitize_post( $post, 'raw' );
+		}
 		wp_cache_add( $post->ID, $post, 'posts' );
 	}
 }