FA-8958 / Filter interfaces / Member archive

Filter-chip identity and removal: Equal values in different filter fields are collapsed · case 03

Equal values in different filter fields are collapsed.

Member previewVariant 3 · 3 implementations · 10 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
cross field	`[["color", "red"]]`	`[["color", "red"], ["tag", "red"]]`	Failed

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