Can't overwrite value attributes in select fields

I am using caldera_forms_render_get_field to create a filter that adds custom options to a select field (‘which_order’).

Basically, I’m trying to loop through a custom WP_Query object and display an option in the select field for each post.

This is partially working — I am successfully outputting the post titles in the dropdown. However I can’t seem to overwrite the “value” attribute for each option. Here is my code:

add_filter( 'caldera_forms_render_get_field', function( $field )  {

    if ( 'which_order' == $field['slug'] ) {	

    	$args = array(
    		'post_type'   => 'time-card',
    		'post_author' => get_current_user_ID(),
    		'post_status' => 'order-complete'
    	);

    	$orders = new WP_Query($args);

    	if ( $orders->have_posts() ) :

    		while ( $orders->have_posts() ) : $orders->the_post();

    			$name = get_the_title();
    			$id   = get_the_ID();

    			$field['config']['option'][] = array(
    				'value' => $id,
    				'label' => $name,
    			);

    		endwhile;

    		wp_reset_postdata();

    	endif;

    }

    return $field;

});

My question is simply this: Why does ‘label’ => $name work, but ‘value’ => $id does not?

https://ww.wp.xz.cn/plugins/caldera-forms/