FA-99734 / Chunk citation alignment / Member archive

Citations crossing deleted text keep an invalid range · case 04

Citations crossing deleted text keep an invalid range.

Member previewVariant 4 · 3 implementations · 6 checks per implementation

Case contract

Given citation [s,e) and deletion [p,q), map endpoints through removal: points <=p unchanged, >=q shift left by q-p, inside map to p; return resulting pair.

Why this case matters

A deterministic citation bookkeeping model isolates source attribution from rendering and retrieval.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
after delete	`[9, 12]`	`[6, 9]`	Failed

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