magento/magento#18901: Forgot password form should not available while customer is logged in.

- redirect logged in customers to My Account.

Author: al.kravchuk

app/code/Magento/Customer/Controller/Account/ForgotPassword.php

@@ -40,10 +40,17 @@ public function __construct(
     /**
      * Forgot customer password page
      *
-     * @return \Magento\Framework\View\Result\Page
+     * @return \Magento\Framework\Controller\Result\Redirect|\Magento\Framework\View\Result\Page
      */
     public function execute()
     {
+        if ($this->session->isLoggedIn()) {
+            /** @var \Magento\Framework\Controller\Result\Redirect $resultRedirect */
+            $resultRedirect = $this->resultRedirectFactory->create();
+            $resultRedirect->setPath('*/*/');
+            return $resultRedirect;
+        }
+
         /** @var \Magento\Framework\View\Result\Page $resultPage */
         $resultPage = $this->resultPageFactory->create();
         $resultPage->getLayout()->getBlock('forgotPassword')->setEmailValue($this->session->getForgottenEmail());