Ticket #27003: 27003.19.diff

src/wp-includes/ms-settings.php

@@ -75 +75 @@
                         $one_network = $wpdb->get_row( "SELECT * FROM $wpdb->site LIMIT 2" ); // [sic]
                         if ( 1 === $wpdb->num_rows ) {
                                 $current_site = wp_get_network( $one_network );
-                                wp_cache_set( 'current_network', 'site-options' );
+                                wp_cache_set( 'current_network', $current_site, 'site-options' );
                         } elseif ( 0 === $wpdb->num_rows ) {
                                 ms_not_installed();
                         }