Ticket #38348: 38348.diff

src/wp-admin/my-sites.php

@@ -23 +23 @@
 if ( 'updateblogsettings' == $action && isset( $_POST['primary_blog'] ) ) {
         check_admin_referer( 'update-my-sites' );
 
-        $blog = get_blog_details( (int) $_POST['primary_blog'] );
+        $site_id = (int) $_POST['primary_blog'];
+        $blog = get_site( $site_id );
         if ( $blog && isset( $blog->domain ) ) {
                 update_user_option( $current_user->ID, 'primary_blog', (int) $_POST['primary_blog'], true );
                 $updated = true;