ACP2E-1445: Customer data in Local Storage not reset when session file lost

 - Fixed the issue.

Author: devarul

app/code/Magento/Customer/Model/Cart/RemoveCookiesWhenQuoteIsNullPlugin.php

@@ -0,0 +1,62 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Customer\Model\Cart;
+
+use Magento\Checkout\Block\Cart\Sidebar;
+use Magento\Framework\Exception\InputException;
+use Magento\Framework\Stdlib\Cookie\FailureToSendException;
+use Magento\Framework\Stdlib\Cookie\PhpCookieManager;
+use Magento\Framework\Stdlib\Cookie\CookieMetadataFactory;
+use Magento\Framework\Session\SessionManagerInterface;
+
+class RemoveCookiesWhenQuoteIsNullPlugin
+{
+    /**
+     * @var PhpCookieManager
+     */
+    private $cookieManager;
+
+    /**
+     * @var CookieMetadataFactory
+     */
+    private $cookieMetadataFactory;
+
+    /**
+     * @var SessionManagerInterface
+     */
+    private $sessionManager;
+
+    /**
+     * @param PhpCookieManager $cookieManager
+     * @param CookieMetadataFactory $cookieMetadataFactory
+     * @param SessionManagerInterface $sessionManager
+     */
+    public function __construct(
+        PhpCookieManager $cookieManager,
+        CookieMetadataFactory $cookieMetadataFactory,
+        SessionManagerInterface $sessionManager
+    ) {
+        $this->cookieManager = $cookieManager;
+        $this->cookieMetadataFactory = $cookieMetadataFactory;
+        $this->sessionManager = $sessionManager;
+    }
+
+    /**
+     * @param Sidebar $subject
+     * @return void
+     * @throws InputException
+     * @throws FailureToSendException
+     */
+    public function beforeGetConfig(Sidebar $subject)
+    {
+        if ($subject->getQuote()->getItems() === null) {
+            $metadata = $this->cookieMetadataFactory->createCookieMetadata();
+            $metadata->setPath($this->sessionManager->getCookiePath());
+            $metadata->setDomain($this->sessionManager->getCookieDomain());
+            $this->cookieManager->deleteCookie('mage-cache-sessid', $metadata);
+        }
+    }
+}

app/code/Magento/Customer/etc/frontend/di.xml

@@ -57,6 +57,9 @@
     <type name="Magento\Checkout\Block\Cart\Sidebar">
         <plugin name="customer_cart" type="Magento\Customer\Model\Cart\ConfigPlugin" />
     </type>
+    <type name="Magento\Checkout\Block\Cart\Sidebar">
+        <plugin name="customer_remove_items_from_cart" type="Magento\Customer\Model\Cart\RemoveCookiesWhenQuoteIsNullPlugin" />
+    </type>
     <type name="Magento\Framework\Session\SessionManagerInterface">
         <plugin name="session_checker" type="Magento\Customer\CustomerData\Plugin\SessionChecker" />
     </type>