No initial load of repeater fields if nested in block template

Hey @elliotcondon

I use some ACF blocks to create a block template which will create on initial load of a new post.

if ( ! function_exists( 'my_block_template' ) ) :

function my_block_template() {

	$post_type_object = get_post_type_object( 'post' );

	if( ! $post_type_object ) {
		return;
	}
	
	$post_type_object->template = array(
		array( 'acf/header-with-inner-blocks', array(
			'data' => array(
				'header_block_style' => 'fullscreen',
				'color_or_gradient' => 'bgcolor',
				'background_color' => '#6b9ce7',
				'remove_overlay' => true,
			),
		), array(
			array( 'acf/site-logo', array(
				'data' => array(
					'site_logo_select' => 'white',
					'site_logo_width' => 140,
				),
			) ), 
			array( 'core/spacer', array(
				'style' => array('height' => '100px'),
			) ), 
			array( 'core/heading', array(
				'content' => __('Coming Soon', 'wphave'),
				'textAlign' => 'center',
				'textColor' => 'white',
				'fontSize' => 'huge-4',
			) ), 
			array( 'core/paragraph', array(
				'content' => __('Our website is coming soon.', 'wphave'),
				'align' => 'center',
				'textColor' => 'white',
				'fontSize' => 'large',
			) ),
			array( 'acf/social-share', array() ), 
			array( 'core/spacer', array(
				'style' => array('height' => '100px'),
			) ), 
			array( 'acf/links', array(
				'data' => array(
					'links_block_direction' => 'horizontal',
					'links_block_separation' => 'separated',
					'links_show' => '2',
					'links_show_0_link_name' => __('Imprint', 'wphave'),
					'links_show_0_link_to_target' => 'custom_link',
					'links_show_0_link_to_url' => array(
						'title' => __('Imprint', 'wphave'),
						'url' => home_url(),
					),
					'links_show_0_link_to_action' => 'modal',
					'links_show_1_link_name' => __('Privacy Policy', 'wphave'),
					'links_show_1_link_to_target' => 'custom_link',
					'links_show_1_link_to_url' => array(
						'title' => __('Privacy Policy', 'wphave'),
						'url' => home_url(),
					),
					'links_show_1_link_to_action' => 'modal',
				),
			) ), 
		) )

	);
	//$post_type_object->template_lock = 'all'; // <-- This block can't modified or removed
}

endif;

add_action( 'init', 'my_block_template', 18 );

This is really cool and works fine.

But in the case of repeater fields, the block is not loaded on initial load of the post.

If I go the block sidebar and adjust something on the fields, the block repeater data is loaded.

Reproduce the issue with the provided my_block_template function and its add_action('init', ...) entry point, using an ACF block containing repeater fields. Compare the initial post load with the state after changing a field in the block sidebar; done means repeater data is loaded on the initial load.