WP_Query matches any post when query parameter "name" is an empty string

[miyarakira]

WP_Query matches any post when query parameter name is an empty string.

For example:

$query = new WP_Query([
  'name' => '',
  'post_type' => 'post',
  'posts_per_page' => 1,
]);

var_dump($query->posts);

The same is true for get_posts() which uses WP_Query internally.

This might be the intended behavior, but it's unintuitive and surprising. It can (did) cause a bug in user code that expects such a query to return no results.