Ticket #23865: 23865.2.diff

wp-includes/ms-blogs.php

@@ -274 +274 @@
         foreach ( array_intersect( array_keys( $details ), $fields ) as $field )
                 $update_details[$field] = $details[$field];
 
+        // Ensure that path has a trailing slash and prefixing slash
+        $update_details[ 'path' ] = sanitize_title( $update_details[ 'path' ] );
+        $update_details[ 'path' ] = "/{$update_details[ 'path' ]}/";
+
         $result = $wpdb->update( $wpdb->blogs, $update_details, array('blog_id' => $blog_id) );
 
         if ( false === $result )