Scene: error when title contains special characters (without UI error message)

[LM1LC3N7]

Describe the bug
When creating a new scene, if the title contains special characters an error 500 is generated without proper UI corresponding error message (unhandled error).

To Reproduce
Steps to reproduce the behavior:

1. Create a new scene
2. Set a title like "Misc | Mettre à jour l'heure"
3. Click "Create"
4. See error (on web browser console)

Expected behavior
The scene to create or the web UI displaying an error message about the special char not accepted.

Additional context
Web browser log:

{
  "response": {
    "status": 500,
    "data": {
      "status": 500,
      "code": "SERVER_ERROR",
      "error": {}
    }
  }
}