diff --git a/wp-includes/block-template-utils.php b/wp-includes/block-template-utils.php
index fe43d89564..3c6850bd32 100644
--- a/wp-includes/block-template-utils.php
+++ b/wp-includes/block-template-utils.php
@@ -1602,6 +1602,10 @@ function inject_ignored_hooked_blocks_metadata_attributes( $changes, $deprecated
 		_deprecated_argument( __FUNCTION__, '6.5.3' );
 	}
 
+	if ( ! isset( $changes->post_content ) ) {
+		return $changes;
+	}
+
 	$hooked_blocks = get_hooked_blocks();
 	if ( empty( $hooked_blocks ) && ! has_filter( 'hooked_block_types' ) ) {
 		return $changes;
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 768d88bed2..2cbeba7ab7 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.7-alpha-58784';
+$wp_version = '6.7-alpha-58785';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.