### Steps to reproduce

1. Make sure your NC storage already has several group folders

2. Login in OP as an admin

3. Go to Administration > Files

4. Add a new NC storage


### What is the buggy behaviour?

* Group folder warning says 'Group folder has expected content' and also 'unexpected content'


### What is the expected behaviour?

1. Begin of the insertionRename 'Group folder has expected content' to 'Group folder content'End of the insertion Begin of the deletion TBDEnd of the deletion


### Screenshots and other files

<img class="op-uc-image op-uc-image_inline" src="/api/v3/attachments/783255/content">

### Environment information

**OpenProject version**

Core build

[3e35490ecb8cd1603f28480cef27b154926e113a](https://github.com/opf/openproject/commits/3e35490ecb8cd1603f28480cef27b154926e113a)

Product version

[8b5f0c9ab849f5a032d2b88321431e8ee511e953](https://github.com/opf/saas-openproject/commits/8b5f0c9ab849f5a032d2b88321431e8ee511e953)

Core version

OpenProject 16.4.1

**Browser**

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

**Operating System**

* [x] Windows
* [ ] Mac OS X
* [ ] Mobile iOS
* [ ] Mobile Android
* [ ] Linux (please specify distro)
* [ ] Chrome OS
* [ ] Other (please specify)