[Bug?] Recurrent CTE results are wrong

[hiroyuki0415]

The following is a recursive CTE that recursively retrieves the parent (3 layers) of [businessunit]:

WITH     cte
AS       (SELECT NULL AS [referencingentity],
                 e0.logicalname AS [referencedentity],
                 e0.logicalname AS [path],
                 0 AS [recursion_count]
          FROM   metadata.entity AS e0
          WHERE  e0.logicalname IN ('businessunit')
          UNION ALL
          SELECT cte.referencedentity AS [referencingentity],
                 sub.referencedentity AS [referencedentity],
                 cte.path + '/' + sub.referencedentity AS [path],
                 cte.recursion_count + 1 AS [recursion_count]
          FROM   cte AS cte CROSS APPLY (SELECT DISTINCT rs.referencedentity
                                         FROM   metadata.relationship_n_1 AS rs
                                         WHERE  cte.referencedentity = rs.referencingentity) AS sub
          WHERE  cte.recursion_count < 3)
SELECT   *
FROM     cte
ORDER BY recursion_count;

Line 15 is wrong. In fact, [organization] does not have [organization] as a parent.