FA-25019 / Filter interfaces / Member archive

Mixed multi-operand groups require summary parentheses · case 04

Mixed multi-operand groups require summary parentheses is violated by the widget projection.

Member previewVariant 4 · 3 implementations · 10 checks per implementation

Case contract

Filter groups summarize direct children with explicit all/any combination and a negation badge, retaining empty-group state without inventing operands. This example checks: Mixed multi-operand groups require summary parentheses.

Why this case matters

Filter-widget state and serialization must preserve user constraints while the view changes.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
contract fixture 0	`{"active-count": 1, "direct-count": 2, "empty-summary": "configured", "join-label": "any", "negation-label": "not ", "parentheses": true}`	`{"active-count": 1, "direct-count": 2, "empty-summary": "configured", "join-label": "any", "negation-label": "not ", "parentheses": false}`	Failed

MEMBER ARCHIVE

The complete case is available to members.

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

Member access is invitation-based. Sign in with your invited account to inspect the sources.