Fix round, item 10. A component and a rung could share an id, so a
reference (a lead, a rung's component, refines, a rule's ladder) could
name two things. Every id is now unique across the five kinds together
(policy-duplicate-id), in both implementations and §3.4(2), with a corpus
case of a component and a rung both named v. The corpus README notes that
two golden payloads are byte-identical because their frames are.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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