diff -r 7b1b88e27a20 -r 48c4eec2b7e6 wp/wp-includes/widgets/class-wp-widget-media-gallery.php
--- a/wp/wp-includes/widgets/class-wp-widget-media-gallery.php	Thu Sep 29 08:06:27 2022 +0200
+++ b/wp/wp-includes/widgets/class-wp-widget-media-gallery.php	Fri Sep 05 18:40:08 2025 +0200
@@ -248,6 +248,8 @@
 	protected function has_content( $instance ) {
 		if ( ! empty( $instance['ids'] ) ) {
 			$attachments = wp_parse_id_list( $instance['ids'] );
+			// Prime attachment post caches.
+			_prime_post_caches( $attachments, false, false );
 			foreach ( $attachments as $attachment ) {
 				if ( 'attachment' !== get_post_type( $attachment ) ) {
 					return false;