Fix an issue with Failed IPN changing to Payment Received incorrectly

Issue + Solution Found:
- https://magento.com/tech-resources/bug-tracking/issue/index/id/1041
- https://stackoverflow.com/a/37028929/541884

app/code/core/Mage/Paypal/Model/Ipn.php

@@ -532,6 +532,11 @@ protected function _registerPaymentDenial()
     protected function _registerPaymentFailure()
     {
         $this->_importPaymentInformation();
+
+        foreach ($this->_order->getInvoiceCollection() as $invoice){
+            $invoice->cancel()->save();
+        }
+
         $this->_order
             ->registerCancellation($this->_createIpnComment(''), false)
             ->save();