FA-36718 / Tab interfaces / Member archive

Discarded tab revival: discarded placeholder · case 03

The tab workspace reports an incorrect discarded placeholder.

Member previewVariant 3 · 3 implementations · 8 checks per implementation

Case contract

Discarding a clean inactive tab releases renderer memory but retains its tab entry and document locator. Activating a discarded tab revives it once and restores saved scroll.

Why this case matters

Offline tab/panel workspace behavior; no browser or desktop framework is emulated.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
workspace regression 3	`[true, 0, "file:d", false, 720, true]`	`[true, 0, "file:d", false, 720, false]`	Failed

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