Conceal migration-only legacy identities from canonical format declarations
while extracting their durable downgrade routes first.
This is the declaration-array counterpart to
toAdditiveCanonicalProduct. It is intended for persisted catalogs
and other consumers that do not hold a complete Product. The source array
and declarations are never mutated.
Conceal migration-only legacy identities from canonical format declarations while extracting their durable downgrade routes first.
This is the declaration-array counterpart to toAdditiveCanonicalProduct. It is intended for persisted catalogs and other consumers that do not hold a complete Product. The source array and declarations are never mutated.