FA-25749 / Filter interfaces / Member archive

Migration remaps obsolete operators without dropping current operators · case 04

Migration remaps obsolete operators without dropping current operators is violated by the widget projection.

Member previewVariant 4 · 3 implementations · 10 checks per implementation

Case contract

Saved filter migration follows explicit field and operator maps, preserves unresolved rows for review, and advances the schema version only after every row is migrated. This example checks: Migration remaps obsolete operators without dropping current operators.

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	`{"field-map": "new", "migration-apply": true, "operator-map": "is", "unresolved-count": 0, "unresolved-retain": [{"resolved": true}], "version-advance": 2}`	`{"field-map": "new", "migration-apply": true, "operator-map": "eq", "unresolved-count": 0, "unresolved-retain": [{"resolved": true}], "version-advance": 2}`	Failed

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