The lab's two-secrets consumer was given one credential and no file: the expansion
ran on the resolver's walk over names, on whichever module mentioned the provision
first, and the per-consumer pass copied that. It expands in that pass now, and a
test has two consumers of one provision, one keeping one file and one keeping two.
secrets: maps a requirement to several files under local names. Each local name is
its own need, its own pair credential (the pair is keyed on it: migration 0027),
its own file on the consumer, its own holder at the provider (the identity with the
local name after it) and rotates apart from the others. The plain shape is
unchanged and every existing row is the credential it was (novox/hq 04-ISSUES/069,
ADR 0094).