[bug-fix] remove '_' from narrative_text in case of KLARNA/SOFORT

Author: Fabian Pechstein

src/PayoneBundle/Ecommerce/PaymentManager/BsPayone.php

@@ -869,7 +869,7 @@ private function setupPostParametersFor($paymentType, $cart, $orderIdent, $confi
                     "amount" => $this->getAmount($price),
                     'currency' => $price->getCurrency()->getShortName(),
                     "reference" => $orderIdent,
-                    "narrative_text" => $config['orderDescription'] ?: $config['paymentInfo']->getInternalPaymentId(),
+                    "narrative_text" => $this->cleanNarrativeText( $config['orderDescription'] ?: $config['paymentInfo']->getInternalPaymentId()),
                     "successurl" => $config['successURL'],
                     "errorurl" => $config['failureURL'],
                     "backurl" => $config['cancelURL'],
@@ -1358,4 +1358,11 @@ public function startPayment(OrderAgentInterface $orderAgent, PriceInterface $pr
 
         return new SnippetResponse($orderAgent->getOrder(), $snippet);
     }
+
+    private function cleanNarrativeText(string $param)
+    {
+        //some chars like "_" seem to cause issues with SOFORT/KLARNA
+        $param = str_replace('_', '-', $param);
+        return $param;
+    }
 }