reproduce:
* back end login
* add a new download
* go to the front end and look at the download details
expected:
* "Änderungsdatum" is empty (and set only when the download was indeed updated)
* "Geändert von" is empty
current:
* "Änderungsdatum" is set to the creation date
* "Geändert von" is empty
Danke. Ist gefixt.