diff --git a/wp-includes/blocks.php b/wp-includes/blocks.php
index 9d8f4bfaf9..94c4dfa43a 100644
--- a/wp-includes/blocks.php
+++ b/wp-includes/blocks.php
@@ -1217,6 +1217,7 @@ function update_ignored_hooked_blocks_postmeta( $post ) {
 	$existing_post = get_post( $post->ID );
 	// Merge the existing post object with the updated post object to pass to the block hooks algorithm for context.
 	$context          = (object) array_merge( (array) $existing_post, (array) $post );
+	$context          = new WP_Post( $context ); // Convert to WP_Post object.
 	$serialized_block = apply_block_hooks_to_content( $markup, $context, 'set_ignored_hooked_blocks_metadata' );
 	$root_block       = parse_blocks( $serialized_block )[0];
 
diff --git a/wp-includes/version.php b/wp-includes/version.php
index ae68572255..9b5c292d28 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.8-alpha-59481';
+$wp_version = '6.8-alpha-59482';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.