Deleting a namespace makes relationships referencing it undeletable

[jonas-jonas]

Preflight checklist

• [X] I could not find a solution in the existing issues, docs, nor discussions.
• [X] I agree to follow this project's Code of Conduct.
• [X] I have read and am following this repository's Contribution Guidelines.
• [ ] I have joined the Ory Community Slack.
• [ ] I am signed up to the Ory Security Patch Newsletter.

Ory Network Project

No response

Describe the bug

Deleting a namespace that is referenced in a relationship makes these relationships undeletable.

Reproducing the bug

1. Create namespace
2. Create relationship referencing the created namespace
3. Delete the namespace
4. Try to delete the relationship
5. See error

Relevant log output

{
    "error": {
        "code": 404,
        "status": "Not Found",
        "request": "f14273cc-1a37-91f2-b556-80aead24212a",
        "reason": "Unknown namespace with name \"test\".",
        "message": "The requested resource could not be found"
    }
}

Relevant configuration

No response

Version

master

On which operating system are you observing this issue?

Ory Network

In which environment are you deploying?

Ory Network

Additional Context

No response