feat: simplify regional workbench language

backend/tests/test_sprint187_temporal_map_foundation.py

@@ -274,6 +274,26 @@ def test_temporal_compare_returns_delta_and_canonical_change_payload(monkeypatch
     assert result.geojson["type"] == "FeatureCollection"
 
 
+def test_unstable_temporal_identity_returns_clear_end_user_warning() -> None:
+    project_id = uuid4()
+    earlier = temporal_dataset(project_id=project_id, observed_year=2021)
+    later = temporal_dataset(project_id=project_id, observed_year=2025)
+    earlier.source_metadata["identity_stable"] = False
+    later.source_metadata["identity_stable"] = False
+
+    changes, geojson, warnings = TemporalAnalysisService._compare_identity_features(
+        SimpleNamespace(),
+        earlier=earlier,
+        later=later,
+        bbox={"min_x": 5.0, "min_y": 51.1, "max_x": 5.2, "max_y": 51.3},
+        preview_limit=100,
+    )
+
+    assert changes.available is False
+    assert geojson == {"type": "FeatureCollection", "features": []}
+    assert warnings == ["Wijzigingen van individuele objecten kunnen voor deze bron niet betrouwbaar worden gevolgd."]
+
+
 def test_temporal_frontend_and_official_operator_contracts_exist() -> None:
     workspace = (ROOT / "frontend/src/components/map/MapWorkspace.tsx").read_text(encoding="utf-8")
     temporal_api = (ROOT / "frontend/src/services/api/temporal.ts").read_text(encoding="utf-8")