FA-10510 / Caching / Member archive

An older refresh completion overwrites a newer cached representation · case 05

An older refresh completion overwrites a newer cached representation.

Member previewVariant 5 · 3 implementations · 4 checks per implementation

Case contract

Entries are [globally comparable integer version,value]. Install incoming only when its version is strictly greater; equal or older completions preserve current state.

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	`[2, "old"]`	`[3, "new"]`	Failed

MEMBER ARCHIVE

The complete case is available to members.

This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

Member access is invitation-based. Sign in with your invited account to inspect the sources.