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Completion of an old flush clears a newer dirty update · case 03

Completion of an old flush clears a newer dirty update.

Member previewVariant 3 · 3 implementations · 4 checks per implementation

Case contract

Entry is [key,value,version,dirty]. Clear dirty only when flush succeeded for this exact current version; preserve all other fields.

Why this case matters

A deterministic cache state transformation. Inputs are copied or treated as immutable; no remote storage, real clock, or concurrent interleaving is simulated.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
fixture 1	`["a", "new", 2, false]`	`["a", "new", 2, true]`	Failed

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