Ticket #10619: unserialize.import.diff

wp-admin/import/wordpress.php

@@ -599 +599 @@
                         $key   = $this->get_tag( $p, 'wp:meta_key' );
                         $value = $this->get_tag( $p, 'wp:meta_value' );
                         $value = stripslashes($value); // add_post_meta() will escape.
+                        $value = maybe_unserialize($value);
 
                         $this->process_post_meta($post_id, $key, $value);