### Steps to reproduce

Begin of the deletion _Exact reproduction steps still unclear. Was once observed on QA in a private project._

End of the deletion 1. Have a Nextcloud storage that authenticates through SSO

2. Login as a **new** SSO user to OpenProject and Nextcloud, so that your account is provisioned on both sides Begin of the insertion

1. The SSO user must not be admin in Nextcloud, because it must not be allowed to read files in NC before OpenProject sets up access permissions

End of the insertion Begin of the deletion

End of the deletion 3. Go to a Begin of the deletion private(?)End of the deletion project where you should be allowed to see linked files

4. Access a work package's files tab with already linked files


### What is the buggy behavior?

The linked file shows slightly greyed out, with a hover text indicating that you do not have access to the file.

Clicking on the file works as expected and after a page refresh, the file shows as readable.

### What is the expected behavior?

Even first-time users should immediately know that they have access to files linked to a work package.

### Environment information

_Please check and fill out the following details to help us identify in what versions and distributions of OpenProject the error occurs_

**OpenProject installation type**

* Hosted cloud edition


**OpenProject version**

QA Edge

**Browser**

* [ ] Chrome
* [x] Firefox
* [ ] Safari
* [ ] Mobile Safari
* [ ] Other (please specify)