MC-21948: Products index data delete process fires before indexation instead of right before insert indexed data to index tables during partial reindex

Author: Oleksandr Iegorov

app/code/Magento/Catalog/Observer/CategoryProductIndexer.php

@@ -8,7 +8,6 @@
 namespace Magento\Catalog\Observer;
 
 use Magento\Catalog\Model\Indexer\Category\Product\Processor;
-use Magento\Catalog\Model\Indexer\Category\Flat\State as FlatState;
 use Magento\Framework\Event\Observer;
 use Magento\Framework\Event\ObserverInterface;
 
@@ -22,21 +21,12 @@ class CategoryProductIndexer implements ObserverInterface
      */
     private $processor;
 
-    /**
-     * @var FlatState
-     */
-    private $flatState;
-
     /**
      * @param Processor $processor
-     * @param FlatState $flatState
      */
-    public function __construct(
-        Processor $processor,
-        FlatState $flatState
-    ) {
+    public function __construct(Processor $processor)
+    {
         $this->processor = $processor;
-        $this->flatState = $flatState;
     }
 
     /**
@@ -45,7 +35,7 @@ public function __construct(
     public function execute(Observer $observer): void
     {
         $productIds = $observer->getEvent()->getProductIds();
-        if (!empty($productIds) && $this->processor->isIndexerScheduled() && $this->flatState->isFlatEnabled()) {
+        if (!empty($productIds) && $this->processor->isIndexerScheduled()) {
             $this->processor->markIndexerAsInvalid();
         }
     }