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FA-100189 / Annotation span alignment / Member archive

Touching spans are incorrectly reported as overlapping · case 04

Touching spans are incorrectly reported as overlapping.

Member previewVariant 4 · 3 implementations · 7 checks per implementation

Case contract

Return true iff half-open intervals [a,b) and [c,d) share at least one position.

Why this case matters

A small offline annotation transformation keeps span coordinates explicit when text or token boundaries change.

One recorded failure

Sample boundary fixture

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

Boundary fixtureActualExpectedOutcome
touch at right edgetruefalseFailed

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