FA-99660 / Chunk citation alignment / Member archive
Citation starts before the retained window · case 05
Citation starts before the retained window.
Case contract
Given window [b,b+L) and citation [s,e), return their half-open intersection or None for empty intersection.
Why this case matters
A deterministic citation bookkeeping model isolates source attribution from rendering and retrieval.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| clip left and right | [2, 13] | [5, 10] | Failed |
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