Aborted transaction with Sofort provider results in TypeError

[sebastian-muthwill]

I'm getting an TypeError NoneType object is not subscriptable when issuing a transaction and then aborting it during the payment process. Sofort.com redirects back with the following transaction content:

I checked the code at this line and it only checks for KeyError but not for TypeError.

django-payments/payments/sofort/__init__.py

Lines 92 to 96 in 3a39db0

	doc["transactions"]["transaction_details"]["status"]
	except KeyError:
	# Payment Failed
	payment.change_status(PaymentStatus.REJECTED)
	return redirect(payment.get_failure_url())

Am I missing something?