I found this thread https://support.advancedcustomfields.com/forums/topic/reverse-query-relationship-subfield-which-is-nested-in-a-repeater-field/
Here is the specific code that works for me, just in case seeing a specific helps anyone in the future
<?php
// custom filter to replace '=' with 'LIKE'
function my_posts_where( $where )
{
$where = str_replace("meta_key = 'credits_%_credits__person'", "meta_key LIKE 'credits_%_credits__person'", $where);
return $where;
}
add_filter('posts_where', 'my_posts_where');
// args
$args = array(
'post_type' => 'work',
'meta_query' => array(
array(
'key' => 'credits_%_credits__person',
'value' => '"' . get_the_ID() . '"',
'compare' => 'LIKE'
)
)
);
// get results
$the_query = new WP_Query( $args );
// The Loop
?>
<?php if( $the_query->have_posts() ): ?>
<ul>
<?php while ( $the_query->have_posts() ) : $the_query->the_post(); ?>
<li>
<a href="<?php the_permalink(); ?>"><?php the_title(); ?></a>
</li>
<?php endwhile; ?>
</ul>
<?php endif; ?>
<?php wp_reset_query(); // Restore global post data stomped by the_post(). ?>
I made a regular relationship field as a test and the code above for my single-team.php worked, so the challenge is just figuring out how to reverse query the relationship field out of a repeater
