Ticket #38551: 38551.patch

src/wp-admin/includes/update-core.php

@@ -748 +748 @@
 
 // If not explicitly defined as false, don't install new default themes.
 if ( ! defined( 'CORE_UPGRADE_SKIP_NEW_BUNDLED' ) || CORE_UPGRADE_SKIP_NEW_BUNDLED ) {
-        $_new_bundled_files = array( 'plugins/akismet/' => '2.0' );
+        $_new_bundled_files = array( 'plugins/akismet/' => '2.0', 'themes/twentyseventeen/' => '4.7' );
 }
 
 /**