FA-7787 / Connection lifecycle / Member archive

Connection close notification is emitted once · case 02

Connection close notification is emitted once.

Member previewVariant 2 · 3 implementations · 4 checks per implementation

Case contract

Given was_closed, now_closed, leased, connection close notification is emitted once. Return the protocol decision or transformed value; fields are validated and fixtures state boundary outcomes.

Why this case matters

This deterministic connection lifecycle model isolates the connection-close-notification-is-emitted-once 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 3	`["notify", "release"]`	`["notify"]`	Failed

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