_wp_preview_meta_filter( mixed $value, int $object_id, string $meta_key, bool $single ): mixed

1121function _wp_preview_meta_filter( $value, $object_id, $meta_key, $single ) {1122	$post = get_post();1123 1124	if ( empty( $post )1125		|| $post->ID !== $object_id1126		|| ! in_array( $meta_key, wp_post_revision_meta_keys( $post->post_type ), true )1127		|| 'revision' === $post->post_type1128	) {1129		return $value;1130	}1131 1132	$preview = wp_get_post_autosave( $post->ID );1133 1134	if ( false === $preview ) {1135		return $value;1136	}1137 1138	return get_post_meta( $preview->ID, $meta_key, $single );1139}