FA-97987 / Training label alignment / Member archive
Ignored examples remain in the supervised loss mask · case 02
Ignored examples remain in the supervised loss mask.
Case contract
Given labels and ignore_id, return 1 for trainable positions and 0 exactly where label equals ignore_id.
Why this case matters
A small deterministic training-data operation makes label ownership and ordering explicit.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| sentinel masked | [1, 1, 1] | [1, 0, 1] | Failed |
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