FA-98297 / Autoregressive target shifting / Member archive
A longer target prefix repeats the final context in extra pairs · case 02
A longer target prefix repeats the final context in extra pairs.
Case contract
Return zipped context and target pairs; unmatched suffix on either side is ignored.
Why this case matters
A small deterministic token-stream contract makes next-token alignment errors inspectable.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| target longer | [[1, 4], [1, 5]] | [[1, 4]] | Failed |
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