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Cached head updates do not replace get payload · case 02

Cached head updates do not replace get payload.

Member previewVariant 2 · 3 implementations · 4 checks per implementation

Case contract

Bounded offline decision model: cached head updates do not replace get payload. Inputs are already validated protocol fields; the explicit fixtures define the supported policy, not a complete protocol implementation.

Why this case matters

This deterministic http caching model isolates the cached-head-updates-do-not-replace-get-payload policy at a network component boundary.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
fixture 1	`""`	`"abc"`	Failed

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