Unchecked "Allow each content item to have its display customized" lead to "The "" entity type does not exist"

Steps to reproduce

1. Create content type
2. Enable Panelize this view mode on admin/structure/types/manage/{content_type}/display, and ensure Allow each content item to have its display customized is disabled. Save settings.
3. Add new block to page and hit Save

Result

Drupal\Component\Plugin\Exception\PluginNotFoundException: The "" entity type does not exist. in Drupal\Core\Entity\EntityTypeManager->getDefinition() (line 133 of /var/www/web/core/lib/Drupal/Core/Entity/EntityTypeManager.php).

Digging deeper

Inside of panelizer_panels_build_alter() function exist an line:

'panelizer_field_storage_id' => $panelizer->hasEntityPermission('change content', $entity, $view_mode) ? $panelizer_field_storage_id : FALSE,

which leads to execution of \Drupal\panelizer\Panelizer::hasEntityPermission() which will return FALSE every time, when Allow each content item to have its display customized checkbox is unchecked.