Steps to reproduce

• Enter data into the donation or membership form.
• Use the no salutation/keine Anrede option.

Expected result

• In the summary box on the second form page and on the confirmation page after submitting the form, the entered address data is displayed.
• No salutation is displayed.

Actual result

• In all cases the salutation is displayed as "undefined".

Screenshots
donation form summary box

donation confirmation page

membership form summary box

membership confirmation page