Describe the bug
The following query return a null reference exception

To Reproduce
Query to reproduce the behavior:

SELECT statecode
FROM (
    SELECT TOP 10 *
    FROM incident
) AS SubQuery
GROUP BY statecode

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots

Environment (please complete the following information):

• SQL 4 CDS edition: XrmToolBox,
• Results of SELECT @@VERSION:
  Microsoft Dataverse - 9.2.25041.256
  SQL 4 CDS - 9.6.1.0
  mai 05 2025 10:06:05
  Copyright © 2020 - 2025 Mark Carrington