Ticket #24635: 24635.diff

wp-includes/user.php

@@ -1191 +1191 @@
  *
  * @param object $user User object to be cached
  */
-function update_user_caches($user) {
+function update_user_caches( $user ) {
+
+        if ( is_numeric( $user ) )
+                $user = new WP_User( $user );
+
+        if ( is_a( $user, 'WP_User' ) ) {
+                if ( ! $user->exists() )
+                        return false;
+                $user = $user->data;
+        }
+
+        if ( ! is_object( $user ) )
+                return false;
+
         wp_cache_add($user->ID, $user, 'users');
         wp_cache_add($user->user_login, $user->ID, 'userlogins');
         wp_cache_add($user->user_email, $user->ID, 'useremail');