FA-36343 / Tab interfaces / Member archive

Maximize pane restore: peer mount retention · case 03

The tab workspace reports an incorrect peer mount retention.

Member previewVariant 3 · 3 implementations · 7 checks per implementation

Case contract

Maximizing a pane temporarily hides peers without changing split tree weights. Restoring returns saved divider positions, panel scroll positions and active pane.

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 0	`[["q"], [2, 3, 5], ["q"], ["p", "r"], {"p": 60, "q": 120, "r": 180}, "q"]`	`[["q"], [2, 3, 5], ["p", "q", "r"], ["p", "r"], {"p": 60, "q": 120, "r": 180}, "q"]`	Failed

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