Added cpr Lookup check

Author: martinyde

modules/os2forms_nemid/src/Element/MitidChildrenSelectAjaxBehaviour.php

@@ -45,6 +45,10 @@ public static function mitidChildrenSelectAjax(array &$form, FormStateInterface
     if ($cprPlugin->isReady()) {
       $cprLookupResult = $cprPlugin->lookup($childCpr);
 
+      if (!$cprLookupResult->isSuccessful()) {
+        return $response;
+      }
+
       /** @var \Drupal\webform\WebformSubmissionForm $webformSubmissionForm */
       $webformSubmissionForm = $form_state->getFormObject();
       /** @var \Drupal\webform\WebformSubmissionInterface $webformSubmission */