Ticket #27218: 27218.patch

src/wp-includes/post-template.php

@@ -1134 +1134 @@
                 if ( $page->ID == $args['selected'] )
                         $output .= ' selected="selected"';
                 $output .= '>';
-                $title = apply_filters( 'list_pages', $page->post_title, $page );
+
+                $title = $page->post_title;
+                if ( '' === $title ) {
+                        $title = sprintf( __( '#%d (no title)' ), $page->ID );
+                }
+
+                $title = apply_filters( 'list_pages', $title, $page );
                 $output .= $pad . esc_html( $title );
                 $output .= "</option>\n";
         }