Multisite: Correct default values for `orderby` and `order` in `WP_Site_Query::__construct()`.

Add a unit test.

Props ramiy, SergeyBiryukov.
See #35791.
Built from https://develop.svn.wordpress.org/trunk@38085


git-svn-id: http://core.svn.wordpress.org/trunk@38026 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/class-wp-site-query.php

@@ -155,8 +155,8 @@ class WP_Site_Query {
 			'number'            => 100,
 			'offset'            => '',
 			'no_found_rows'     => true,
-			'orderby'           => 'ids',
-			'order'             => 'DESC',
+			'orderby'           => 'id',
+			'order'             => 'ASC',
 			'network_id'        => 0,
 			'network__in'       => '',
 			'network__not_in'   => '',

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.6-beta3-38084';
+$wp_version = '4.6-beta3-38085';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.