Issue #3330386 by greggmarshall, owenbush: field_inheritance_form_alter should...

Issue #3330386 by greggmarshall, owenbush: field_inheritance_form_alter should enforce module permissions

field_inheritance.module

@@ -132,6 +132,9 @@ function field_inheritance_entity_bundle_field_info_alter(&$fields, EntityTypeIn
  * Implements hook_form_alter().
  */
 function field_inheritance_form_alter(&$form, FormStateInterface $form_state, $form_id) {
+  if (!\Drupal::currentUser()->hasPermission('administer field inheritance')) {
+    return;
+  }
   $form_object = $form_state->getFormObject();
   if (!empty($form_object) && $form_object instanceof EntityForm) {
     $entity = $form_state->getFormObject()->getEntity();