From cc0a8cda99e3f74fbe9170088541ec424b300a1e Mon Sep 17 00:00:00 2001
From: Michele Imperato <michele.imperato@magespecialist.it>
Date: Thu, 21 Jan 2021 11:23:58 +0100
Subject: [PATCH 1/2] Invalidate parent product cache on child stock item save

---
 app/code/local/MSP/LTS2/Model/Cache.php | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/app/code/local/MSP/LTS2/Model/Cache.php b/app/code/local/MSP/LTS2/Model/Cache.php
index 1832889..56c7d5c 100644
--- a/app/code/local/MSP/LTS2/Model/Cache.php
+++ b/app/code/local/MSP/LTS2/Model/Cache.php
@@ -382,7 +382,15 @@ public function invalidateOnModelSave($modelInstance)
     {
         $invalidations = Mage::getSingleton('msp_ltsr2/cache')->getBlocksModelInvalidation($modelInstance);
         $tags = array();
-        
+
+        if ($modelInstance instanceof Mage_CatalogInventory_Model_Stock_Item) {
+            $parentIds = Mage::getSingleton('catalog/product_type_configurable')
+                ->getParentIdsByChild($modelInstance->getProductId());
+            foreach($parentIds as $parentId) {
+                $tags[] = 'CATALOG_PRODUCT_' . $parentId;
+            }
+        }
+
         foreach ($invalidations['global'] as $blockName) {
             $tags[] = 'MSP_BLOCK_NAME_'.$blockName;
         }

From 50fb470e08667cb7b87dd772c592ee27317707a4 Mon Sep 17 00:00:00 2001
From: Michele Imperato <michele.imperato@magespecialist.it>
Date: Thu, 21 Jan 2021 11:32:31 +0100
Subject: [PATCH 2/2] Update module version

---
 app/code/local/MSP/LTS2/etc/config.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/code/local/MSP/LTS2/etc/config.xml b/app/code/local/MSP/LTS2/etc/config.xml
index cdc9010..61d2667 100644
--- a/app/code/local/MSP/LTS2/etc/config.xml
+++ b/app/code/local/MSP/LTS2/etc/config.xml
@@ -19,7 +19,7 @@
 <config>
 	<modules>
 		<MSP_LTS2>
-			<version>1.0.1</version>
+			<version>1.0.2</version>
 		</MSP_LTS2>
 	</modules>