The content paths that move (the version stamp left out).
OptionaldroppedA human_verified mark that went, since what the person checked changed.
OptionalduplicateOptionalmovedThe id the record has under this build's rules, when it differs from id
(currentReference, issue #25): the record moves there, or — when a record of that
id is stored already — the stale copy under id is removed (duplicate).
OptionalqaThe Q/A before and after, compared by question number rather than by index: a new
reading that finds one more pair shifts every qa[n] after it, and resolved /
abstained then name fields that only moved (issue #26). Set for changed.
OptionalreasonAbstained fields the new extraction fills: in the stored record's list, not in the new one's.
Abstained fields the new extraction adds.