Unable to delete a default datatype

[mdeslauriers-sigmund]

Describe the bug
uSync cannot delete basic data-types shipped with umbraco.

To Reproduce
Steps to reproduce the behavior:

1. Create a new umbraco project 13.2.2
2. Install usync 13.1.3
3. Boot the website and create a fresh database in the wizard
4. Login the backoffice
5. Go to Settings => uSync dashboard
6. Export everything
7. Delete an existing datatype ie: "Approved Color".
8. Confirm that \uSync\v9\DataTypes\ApprovedColor.config contains the instruction: <Empty Key="..." Alias="Approved Color" Change="Delete" />
9. Stop the site
10. Delete the database
11. Remove the ConnectionStrings in appsettings.json
12. Reboot the website and create a new database in the wizard
13. Login the backoffice
14. Go to Settings => DataTypes
15. See that "Approved Color" is there (it should have been deleted
16. Go to uSync dashboard and click "Report"
17. See that "Approved Color" is listed twice in changes
18. Try to run "import"
19. See that "Approved Color" is not deleted

Expected behavior
The datatype should have been deleted

Screenshots

About your Site (please complete the following information):

• Umbraco Version: 13.2.2
• uSync Version: 13.1.3
• Browser : Any

Additional context
Activating Debug in logs shows and executing the import action shows the following message :