Change Template depth search

Hello everyone,

I have a question, I’ve made some research but I found nothing.

I’m wondering why in the function get_post_templates() in wp-includes/class-wp-theme.php at line 1015 the depth args in the get_files is hard-coded with 1.

`$files = (array) $this->get_files( ‘php’, 1, true );

I think that at least 2 is not too much. For exemple :

templates/my-post-type/block1.php

templates/my-post-type/block2.php

Is there someone who know why it is hardcoded to 1 ?

Thanks for your help.