Ticket #38699: 38699.diff

src/wp-includes/ms-functions.php

@@ -1375 +1375 @@
         $blog_id = $wpdb->insert_id;
         refresh_blog_details( $blog_id );
 
-        wp_maybe_update_network_site_counts();
+        wp_maybe_update_network_site_counts( $site_id );
 
         return $blog_id;
 }

tests/phpunit/tests/multisite/network.php

@@ -585 +585 @@
 
                 return $is_large_network;
         }
+
+        /**
+         * @ticket 38699
+         */
+        public function test_wpmu_create_blog_updates_correct_network_site_count() {
+                $original_count = get_blog_count( self::$different_network_id );
+
+                $site_id = self::factory()->blog->create( array(
+                        'domain'  => 'example.org',
+                        'path'    => '/',
+                        'site_id' => self::$different_network_id,
+                ) );
+
+                $result = get_blog_count( self::$different_network_id );
+
+                wpmu_delete_blog( $site_id, true );
+
+                $this->assertEquals( $original_count + 1, $result );
+        }
 }
 
 endif;