A new PR [https://github.com/hibernate/hibernate-semantic-query/pull/4 . ]
As discussed with [~steve] the PR follows 2 principles: 1. It's ok to reuse an identification variable as a result variable as long as they both refer to the same thing (the From Element) 2. An Identification variable can only be used in subqueries, it's completely invalid to reuse them in the same query spec.
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