WP_Customize_Manager::find_changeset_post_id( string $uuid )

	public function find_changeset_post_id( $uuid ) {
		$cache_group = 'customize_changeset_post';
		$changeset_post_id = wp_cache_get( $uuid, $cache_group );
		if ( $changeset_post_id && 'customize_changeset' === get_post_type( $changeset_post_id ) ) {
			return $changeset_post_id;
		}

		$changeset_post_query = new WP_Query( array(
			'post_type' => 'customize_changeset',
			'post_status' => get_post_stati(),
			'name' => $uuid,
			'posts_per_page' => 1,
			'no_found_rows' => true,
			'cache_results' => true,
			'update_post_meta_cache' => false,
			'update_post_term_cache' => false,
			'lazy_load_term_meta' => false,
		) );
		if ( ! empty( $changeset_post_query->posts ) ) {
			// Note: 'fields'=>'ids' is not being used in order to cache the post object as it will be needed.
			$changeset_post_id = $changeset_post_query->posts[0]->ID;
			wp_cache_set( $uuid, $changeset_post_id, $cache_group );
			return $changeset_post_id;
		}

		return null;
	}