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Filter-chip identity and removal: Replacing an exclusive field clears unrelated filters · case 04

Replacing an exclusive field clears unrelated filters.

Member previewVariant 4 · 3 implementations · 11 checks per implementation

Case contract

Chip identity includes field and value; exclusive replacement clears only that field; removal targets one identity; field clear and global clear have distinct scope.

Why this case matters

A deterministic model of filter-chip identity and removal; this isolates one interface invariant without requiring a browser.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
exclusive	`[["color", "blue"]]`	`[["tag", "new"], ["color", "blue"]]`	Failed

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