FA-28067 / HTTP redirects / Member archive

Preserve query-field structure while preparing a redirect target: duplicate key preservation · case 02

Preserve query-field structure while preparing a redirect target: the duplicate key preservation branch emits an incorrect decision.

Member previewVariant 2 · 3 implementations · 6 checks per implementation

Case contract

Preserve query-field structure while preparing a redirect target. The explicit fixture inputs and outputs define a bounded offline policy; request identity must accompany the decision.

Why this case matters

Models a redirect controller decision before following a target or exposing a redirect result.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
fixture 1	`{"decision": [["a=1", "b"], ["value", "value", "bare"], ["1", "1", ""], 3, ["a=1", "a=1", "b"]], "request": "/requests/2/0"}`	`{"decision": [["a=1", "a=1", "b"], ["value", "value", "bare"], ["1", "1", ""], 3, ["a=1", "a=1", "b"]], "request": "/requests/2/0"}`	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.