Changing labels post not working

[Huub]

Hi,

When I add the code below to the Poet config it causes the label to show up blank. Any idea why?

...
'post' => [
    'post' => [
        'labels' => [
            'singular' => 'Article',
            'plural' => 'Articles',
        ],
    ],
],
...

[Huub]

I found that the labels show up when commenting out:

poet/src/Poet.php

Lines 64 to 74 in 0d183c1

 if (empty($key) || is_int($key)) { 
     return register_extended_post_type(...Arr::wrap($value)); 
 } 
  
 if ($this->exists($key)) { 
     if ($value === false) { 
         return $this->remove($key); 
     } 
  
     return $this->modify($key, $value); 
 } 

But can't locate the exact problem.