Issue #3207751 by larisse: URL validation of link field doesn't work

src/ConditionalFieldsFormHelper.php

@@ -461,6 +461,7 @@ class ConditionalFieldsFormHelper {
 
     if (!empty($field_errors)) {
       $form_state_addition['errors'] = $field_errors;
+      return;
     }
 
     $fiel_state_values_count = count($form_state->getValue('conditional_fields_untriggered_dependents'));