Issue #3513045: Error when updating user role (workflow_access)

modules/workflow_access/workflow_access.module

@@ -73,13 +73,11 @@ function workflow_access_workflow_operations($op, ?EntityInterface $entity = NUL
   switch (TRUE) {
     case $entity instanceof WorkflowInterface:
       /** @var \Drupal\workflow\Entity\WorkflowInterface $entity */
-      $label = $entity->label();
       $wid = $entity->id();
       break;
 
     case $entity instanceof WorkflowState:
       /** @var \Drupal\workflow\Entity\WorkflowState $entity */
-      $label = $entity->getWorkflowId();
       $wid = $entity->getWorkflowId();
       break;
   }
@@ -125,6 +123,9 @@ function workflow_access_user_role_update(EntityInterface $entity) {
   // is the key for workflow_Access.
   /** @var \Drupal\user\RoleInterface $entity */
   $original_entity = WorkflowTargetEntity::getOriginal($entity);
+  if (!$original_entity) {
+    return;
+  }
   if ($entity->getWeight() != $original_entity->getWeight()) {
     // Role's weight has changed.
     node_access_needs_rebuild(TRUE);