fix(core): retain reference scope during dereference - #1268
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Dereferencing a scoped field rebuilds FieldReference without its outer-reference or lambda metadata. SQL such as i.id = o.s.v inside a correlated subquery consequently exports o.s.v as a local root reference; with matching schemas it instead reads i.s.v without a type error. Copy the original reference metadata while extending its path and deriving the selected type. Struct, list, and map dereferences retain their outer steps, relation anchor, or lambda scope, including a zero-step reference to the current lambda. This fixes reference construction and SQL export. It does not add support for nested scoped paths in reverse converters that currently cannot handle them.
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Dereferencing a scoped field rebuilds FieldReference without its outer-reference or lambda metadata. SQL such as i.id = o.s.v inside a correlated subquery consequently exports o.s.v as a local root reference; with matching schemas it instead reads i.s.v without a type error.
Copy the original reference metadata while extending its path and deriving the selected type. Struct, list, and map dereferences retain their outer steps, relation anchor, or lambda scope, including a zero-step reference to the current lambda.
This fixes reference construction and SQL export. It does not add support for nested scoped paths in reverse converters that currently cannot handle them.