FA-36924 / Table interactions / Member archive

Pinned table panes: center scroll · case 04

The table center scroll result violates the stipulated pinned table panes contract.

Member previewVariant 4 · 3 implementations · 6 checks per implementation

Case contract

Partition visible schema columns into left, center, and right panes; left wins conflicting pin assignments. Pin order follows schema, left offsets are prefixes, right offsets suffixes, only center moves on scroll, reservations exclude hidden tracks.

Why this case matters

An offline table UI model isolates pinned table panes, including adversarial row/column relationships.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
mixed panes	`[["a", "b"], ["c"], ["d", "e"], {"a": 0, "b": 8}, {"d": 6, "e": 0}, {"c": 3}, 11, 10, ["b"], ["d"]]`	`[["a", "b"], ["c"], ["d", "e"], {"a": 0, "b": 8}, {"d": 6, "e": 0}, {"c": -3}, 11, 10, ["b"], ["d"]]`	Failed

MEMBER ARCHIVE

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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

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