FA-25229 / Filter interfaces / Member archive

Equal leaf captions do not merge different hierarchy paths · case 04

Equal leaf captions do not merge different hierarchy paths is violated by the widget projection.

Member previewVariant 4 · 3 implementations · 10 checks per implementation

Case contract

Hierarchical facet identities are path tuples. Breadcrumb display, sibling scoping and subtree indicators operate on path segments rather than string prefixes. This example checks: Equal leaf captions do not merge different hierarchy paths.

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	`{"ancestor": false, "breadcrumb": "", "leaf-label": "(root)", "same-leaf": false, "sibling": false, "up-navigation": []}`	`{"ancestor": false, "breadcrumb": "", "leaf-label": "(root)", "same-leaf": true, "sibling": false, "up-navigation": []}`	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.