FA-35640 / Tab interfaces / Member archive
Recently closed stack: remaining undo stack · case 05
The tab workspace reports an incorrect remaining undo stack.
Case contract
Closed tabs are restored LIFO with original group, insertion slot, document and viewport; skip tombstones and keep remaining stack order.
Why this case matters
Offline tab/panel workspace behavior; no browser or desktop framework is emulated.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| workspace regression 0 | ["b", "h", 0, 250, ["a", "b"], ["a", "b"]] | ["b", "h", 0, 250, ["a", "b"], ["a"]] | Failed |
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