### Steps to reproduce

* fetch a file info response from `/ocs/v1.php/apps/integration_openproject/fileinfo/:id`


### What is the buggy Begin of the insertionbehaviorEnd of the insertion Begin of the deletion behavior?End of the deletion

* Begin of the deletion ctime is 0

* End of the deletion modifier and owner is not stable

* for files uploaded AND modified, it has a value

* for files only uploaded modifier is `null`

* for files seeded modifier is equal to owner

* owner is not creator

* e.g. in a file uploaded to a shared folder owner of the file is not the uploader, but the owner of the folder

* modifier is null, so we can't rely on any data here to get the last interaction (upload)


### What is the expected behavior?

Begin of the deletion * ctime has the correct value

End of the deletion * modifier always shows the user, that did the last interaction on a file