Index: src/wp-login.php
===================================================================
--- src/wp-login.php	(revision 38640)
+++ src/wp-login.php	(working copy)
@@ -310,7 +310,7 @@
 	 * @param WP_Error $errors A WP_Error object containing any errors generated
 	 *                         by using invalid credentials.
 	 */
-	do_action( 'lostpassword_post', $errors );
+	do_action( 'lostpassword_post', $errors, $user_data );
 
 	if ( $errors->get_error_code() )
 		return $errors;