* [#4334] Fixed the email registration plugin not sending a payment-received
  email when "wait for payment to register" is enabled. This behaviour is to ensure that
  financial departments can always be informed of payment administration.
* [#4502] Fixed a problem where the registration-backend routing logic is not
  calculated again after pausing and resuming a submission.
* [#4560] Fixed more PDF generation overlapping content issues. The layout no
  longer uses two columns, but just stacks the labels and answers below each other since
  a compromise was not feasible.