Message Title

I just found an edge case where the current implementation of the subquery rewrite produces wrong results. The problem occurs when a non-related join alias is used in the ON clause with a key restriction. Something like

SELECT c
FROM Document d
LEFT JOIN d.versions v
LEFT JOIN d.contacts c ON KEY(c) = v.idx

select person3_.id as id1_6_, person3_.age as age2_6_, person3_.name as name3_6_, person3_.partnerDocument_id as partnerD4_6_ 
from Document document0_ 
left outer join document_version versions1_ on document0_.id=versions1_.document_id 
left outer join (
	select contacts2_.*, versions1_.idx as c_0_idx from contacts contacts2_ left outer join Person person3_ on contacts2_.contacts_id=person3_.id
) contacts2_ on document0_.id=contacts2_.Document_id and (contacts2_.contacts_KEY=contacts2_.c_0_idx ) 
left outer join Person person3_ on contacts2_.contacts_id=person3_.id

The subquery uses a join alias that is only available outside of it. The fix is to prevent inlining such columns. A PR is on it's way...