diff --git a/src/wp-includes/ms-site.php b/src/wp-includes/ms-site.php index 920e5d8b37..2d568a57f5 100644 --- a/src/wp-includes/ms-site.php +++ b/src/wp-includes/ms-site.php @@ -380,6 +380,10 @@ function update_site_cache( $sites, $update_meta_cache = true ) { * @return array|false Returns false if there is nothing to update. Returns an array of metadata on success. */ function update_sitemeta_cache( $site_ids ) { + // Ensure this filter is hooked in even if the function is called early. + if ( ! has_filter( 'update_blog_metadata_cache', 'wp_check_site_meta_support_prefilter' ) ) { + add_filter( 'update_blog_metadata_cache', 'wp_check_site_meta_support_prefilter' ); + } return update_meta_cache( 'blog', $site_ids ); }