Issue #3252466: Check in queue if still in stock

src/Plugin/QueueWorker/CommerceStockNotifyQueue.php

@@ -99,6 +99,10 @@ class CommerceStockNotifyQueue extends QueueWorkerBase implements ContainerFacto
         // The product or variation is inactive, ignore it.
         throw new \Exception("Variation $sku (or it\'s parent product) is unpublished. Skipping for now.");
       }
+      if (!commerce_stock_notifications_check_stock($variation)) {
+        // There is no stock right now, do nothing.
+        return;
+      }
       // Parameters that will be used during the mailing procedure.
       $params = [
         'mail_title' => $this->token->replace(AdminConfigForm::getValuesFromConfig()['email_subject'], [