A task id written as a bare "T01" is unique only inside its own workplan.
Stored as a canonical identifier it makes every workplan's first task share one
identity: 51 such ids were assigned to 148 rows on central before this was
caught, found because identified rows outnumbered distinct identities.
Short ids are now qualified as WORKPLAN-ID-T01. A short id in a file with no
workplan id in frontmatter is left unidentified — an identity that is not unique
is worse than none, which is the same rule the rest of this module already
follows.
The 136 affected rows on central have been cleared so the corrected backfill can
reassign them; the backfill never overwrites an existing identity, so they had to
be nulled rather than re-derived over.
Refs STATE-WP-0083-T06
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Assistant: claude-code
Assistant-Model: opus
Assistant-Process: 2583210@bnt-lap001
Assistant-Session: f2bff2d5-e9b2-4338-92ca-10282a927006
Every work-record type carried a stable identifier except tasks, whose rows held
only id, workplan_id, title, status and priority — nothing connecting a row to
CUST-WP-0067-T01 in the file it came from. Matching was therefore by title, so a
renamed heading looked like one task vanishing and another appearing, and the
forge-derived reset had to refuse to touch tasks at all.
Adds tasks.record_id (nullable: no migration can invent an identity for an
existing row) and a backfill that reads the pairing from the repository files,
where a task declares both its canonical id and its projection UUID. 5516 pairs
across 121 repositories with zero conflicts; 4456 of 6073 cache task rows
identified.
Diff and reset now key on record_id where present, falling back to a
title-prefixed key so an unidentified row stays visibly unidentified.
Unknown stays unknown: a row the files do not claim keeps no identity and the
reset keeps refusing to act on it, and an existing identity is never
overwritten — a mismatch is recorded as a conflict rather than resolved.
Refs STATE-WP-0083-T06
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Assistant: claude-code
Assistant-Model: opus
Assistant-Process: 2583210@bnt-lap001
Assistant-Session: f2bff2d5-e9b2-4338-92ca-10282a927006
