diff --git a/src/wp-includes/block-template-utils.php b/src/wp-includes/block-template-utils.php
index a4e54432d2aa2..8dce1f52ebf84 100644
--- a/src/wp-includes/block-template-utils.php
+++ b/src/wp-includes/block-template-utils.php
@@ -894,6 +894,14 @@ function _build_block_template_result_from_post( $post ) {
 		}
 	}
 
+	$hooked_blocks = get_hooked_blocks();
+	if ( ! empty( $hooked_blocks ) || has_filter( 'hooked_block_types' ) ) {
+		$before_block_visitor = make_before_block_visitor( $hooked_blocks, $template );
+		$after_block_visitor  = make_after_block_visitor( $hooked_blocks, $template );
+		$blocks               = parse_blocks( $post->post_content );
+		$template->content    = traverse_and_serialize_blocks( $blocks, $before_block_visitor, $after_block_visitor );
+	}
+
 	return $template;
 }
 
diff --git a/src/wp-includes/blocks.php b/src/wp-includes/blocks.php
index 52b20b3e55b26..0f6f9ff9c508d 100644
--- a/src/wp-includes/blocks.php
+++ b/src/wp-includes/blocks.php
@@ -757,6 +757,44 @@ function get_hooked_blocks() {
 	return $hooked_blocks;
 }
 
+function insert_hooked_blocks( $relative_position, &$anchor_block, $hooked_blocks, $context ) {
+	$anchor_block_type  = $anchor_block['blockName'];
+	$hooked_block_types = isset( $hooked_blocks[ $anchor_block_type ][ $relative_position ] )
+		? $hooked_blocks[ $anchor_block_type ][ $relative_position ]
+		: array();
+
+	$markup = '';
+	/**
+	 * Filters the list of hooked block types for a given anchor block type and relative position.
+	 *
+	 * @since 6.4.0
+	 *
+	 * @param string[]                $hooked_block_types  The list of hooked block types.
+	 * @param string                  $relative_position   The relative position of the hooked blocks.
+	 *                                                     Can be one of 'before', 'after', 'first_child', or 'last_child'.
+	 * @param string                  $anchor_block_type   The anchor block type.
+	 * @param WP_Block_Template|array $context             The block template, template part, or pattern that the anchor block belongs to.
+	 */
+	$hooked_block_types = apply_filters( 'hooked_block_types', $hooked_block_types, $relative_position, $anchor_block_type, $context );
+	foreach ( $hooked_block_types as $hooked_block_type ) {
+		if (
+			! isset( $anchor_block['attrs']['metadata']['ignoredHookedBlocks'] ) ||
+			! in_array( $hooked_block_type, $anchor_block['attrs']['metadata']['ignoredHookedBlocks'] )
+		) {
+			$markup .= get_comment_delimited_block_content( $hooked_block_type, array(), '' );
+		}
+
+		// TODO: The following is only needed for the REST API endpoint.
+		// Ideally, the code should thus be moved into the controller.
+		if ( ! isset( $anchor_block['attrs']['metadata']['ignoredHookedBlocks'] ) ) {
+			$anchor_block['attrs']['metadata']['ignoredHookedBlocks'] = array();
+		}
+		$anchor_block['attrs']['metadata']['ignoredHookedBlocks'][] = $hooked_block_type;
+
+	}
+	return $markup;
+}
+
 /**
  * Returns a function that injects the theme attribute into, and hooked blocks before, a given block.
  *
@@ -792,40 +830,10 @@ function make_before_block_visitor( $hooked_blocks, $context ) {
 
 		if ( $parent_block && ! $prev ) {
 			// Candidate for first-child insertion.
-			$relative_position  = 'first_child';
-			$anchor_block_type  = $parent_block['blockName'];
-			$hooked_block_types = isset( $hooked_blocks[ $anchor_block_type ][ $relative_position ] )
-				? $hooked_blocks[ $anchor_block_type ][ $relative_position ]
-				: array();
-
-			/**
-			 * Filters the list of hooked block types for a given anchor block type and relative position.
-			 *
-			 * @since 6.4.0
-			 *
-			 * @param string[]                $hooked_block_types  The list of hooked block types.
-			 * @param string                  $relative_position   The relative position of the hooked blocks.
-			 *                                                     Can be one of 'before', 'after', 'first_child', or 'last_child'.
-			 * @param string                  $anchor_block_type   The anchor block type.
-			 * @param WP_Block_Template|array $context             The block template, template part, or pattern that the anchor block belongs to.
-			 */
-			$hooked_block_types = apply_filters( 'hooked_block_types', $hooked_block_types, $relative_position, $anchor_block_type, $context );
-			foreach ( $hooked_block_types as $hooked_block_type ) {
-				$markup .= get_comment_delimited_block_content( $hooked_block_type, array(), '' );
-			}
+			$markup .= insert_hooked_blocks( 'first_child', $parent_block, $hooked_blocks, $context );
 		}
 
-		$relative_position  = 'before';
-		$anchor_block_type  = $block['blockName'];
-		$hooked_block_types = isset( $hooked_blocks[ $anchor_block_type ][ $relative_position ] )
-			? $hooked_blocks[ $anchor_block_type ][ $relative_position ]
-			: array();
-
-		/** This filter is documented in wp-includes/blocks.php */
-		$hooked_block_types = apply_filters( 'hooked_block_types', $hooked_block_types, $relative_position, $anchor_block_type, $context );
-		foreach ( $hooked_block_types as $hooked_block_type ) {
-			$markup .= get_comment_delimited_block_content( $hooked_block_type, array(), '' );
-		}
+		$markup .= insert_hooked_blocks( 'before', $block, $hooked_blocks, $context );
 
 		return $markup;
 	};
@@ -859,33 +867,11 @@ function make_after_block_visitor( $hooked_blocks, $context ) {
 	 * @return string The serialized markup for the given block, with the markup for any hooked blocks appended to it.
 	 */
 	return function ( &$block, &$parent_block = null, $next = null ) use ( $hooked_blocks, $context ) {
-		$markup = '';
-
-		$relative_position  = 'after';
-		$anchor_block_type  = $block['blockName'];
-		$hooked_block_types = isset( $hooked_blocks[ $anchor_block_type ][ $relative_position ] )
-				? $hooked_blocks[ $anchor_block_type ][ $relative_position ]
-				: array();
-
-		/** This filter is documented in wp-includes/blocks.php */
-		$hooked_block_types = apply_filters( 'hooked_block_types', $hooked_block_types, $relative_position, $anchor_block_type, $context );
-		foreach ( $hooked_block_types as $hooked_block_type ) {
-			$markup .= get_comment_delimited_block_content( $hooked_block_type, array(), '' );
-		}
+		$markup = insert_hooked_blocks( 'after', $block, $hooked_blocks, $context );
 
 		if ( $parent_block && ! $next ) {
 			// Candidate for last-child insertion.
-			$relative_position  = 'last_child';
-			$anchor_block_type  = $parent_block['blockName'];
-			$hooked_block_types = isset( $hooked_blocks[ $anchor_block_type ][ $relative_position ] )
-				? $hooked_blocks[ $anchor_block_type ][ $relative_position ]
-				: array();
-
-			/** This filter is documented in wp-includes/blocks.php */
-			$hooked_block_types = apply_filters( 'hooked_block_types', $hooked_block_types, $relative_position, $anchor_block_type, $context );
-			foreach ( $hooked_block_types as $hooked_block_type ) {
-				$markup .= get_comment_delimited_block_content( $hooked_block_type, array(), '' );
-			}
+			$markup .= insert_hooked_blocks( 'last_child', $parent_block, $hooked_blocks, $context );
 		}
 
 		return $markup;
diff --git a/src/wp-includes/blocks/template-part.php b/src/wp-includes/blocks/template-part.php
index 3ad400906945b..26d90c51b5529 100644
--- a/src/wp-includes/blocks/template-part.php
+++ b/src/wp-includes/blocks/template-part.php
@@ -43,10 +43,10 @@ function render_block_core_template_part( $attributes ) {
 		if ( $template_part_post ) {
 			// A published post might already exist if this template part was customized elsewhere
 			// or if it's part of a customized template.
-			$content    = $template_part_post->post_content;
-			$area_terms = get_the_terms( $template_part_post, 'wp_template_part_area' );
-			if ( ! is_wp_error( $area_terms ) && false !== $area_terms ) {
-				$area = $area_terms[0]->name;
+			$block_template = _build_block_template_result_from_post( $template_part_post );
+			$content        = $block_template->content;
+			if ( isset( $block_template->area ) ) {
+				$area = $block_template->area;
 			}
 			/**
 			 * Fires when a block template part is loaded from a template post stored in the database.
diff --git a/src/wp-includes/class-wp-block-type.php b/src/wp-includes/class-wp-block-type.php
index b8ffb92e559b2..73bd1fd304a2f 100644
--- a/src/wp-includes/class-wp-block-type.php
+++ b/src/wp-includes/class-wp-block-type.php
@@ -243,10 +243,12 @@ class WP_Block_Type {
 	 * Attributes supported by every block.
 	 *
 	 * @since 6.0.0
+	 * @since 6.5.0 Added metadata global attribute.
 	 * @var array
 	 */
 	const GLOBAL_ATTRIBUTES = array(
-		'lock' => array( 'type' => 'object' ),
+		'lock'     => array( 'type' => 'object' ),
+		'metadata' => array( 'type' => 'object' ),
 	);
 
 	/**