There is a bug in the UI when a project is part of an organization that is not the default one.
The `organization` parameter is missing from the call to `/api/qualityprofiles/search`.
We end up with an empty page like this :
- Go to the Quality Profiles administration page of the organization
- Click on the Quality Profile that should be linked to the project
- Then click on the "Change Projects" button
- In the "Without" tab select the project to be linked