PHP error with validation server side

[Spooky063]

Description

I enabled inline errors module on all my forms (login, register, ...) to remove the client side validation and manage them on the server side.
But when I apply it on my registration form and submit it (without having filled any field), I get a 500 error with the following message:

TypeError: Return value of Drupal\apigee_edge\Entity\Controller\Cache\DeveloperIdCache::getEntityId() must be of the type string, null returned in Drupal\apigee_edge\Entity\Controller\Cache\DeveloperIdCache->getEntityId() (line 40 of modules/contrib/apigee_edge/src/Entity/Controller/Cache/DeveloperIdCache.php).

I haven't tried to apply the same changes for the app creation/editing form but it should work too.

Steps to Reproduce

1. Override the register form,

function HOOK_form_alter(array &$form, FormStateInterface $form_state, string $form_id): void
{
  if ($form_id === 'user_register_form') {
    $form['#attributes']['novalidate'] = 'novalidate';
  }
}

2. Go to registration page (/user/register),
3. Did not fill in any fields,
4. Submit the form.

Actual Behavior

When I submit the form, I get an error instead of inline errors.

Expected Behavior

When I submit the form, I would like to find my form with the error messages on the concerned fields.

Screenshots

Error catch

Notes

NC

Version Info

I use the following versions:

• Apigee Edge: 8.x-1.25
• Apigee API Catalog: 8.x-2.6
• Apigee Edge API product RBAC: 8.x-1.25
• Apigee Monetization: 8.x-1.12