修改问题

tests/unit/project_detail_upsert/test_project_detail_upsert_poll.py

@@ -263,7 +263,7 @@ async def test_create_all_marks_duplicate_project_key_in_same_batch_as_error() -
 
 
 @pytest.mark.asyncio
-async def test_create_node_reuses_existing_node_by_project_key_and_rebinds_data_id() -> None:
+async def test_create_node_raises_on_existing_project_key_with_different_data_id() -> None:
     collection = DataCollection("remote")
 
     handler = ProjectDetailApiHandler()
@@ -278,17 +278,15 @@ async def test_create_node_reuses_existing_node_by_project_key_and_rebinds_data_
     )
     await collection.add(existing)
 
-    created = handler._create_node(
-        {
-            "id": "remote-detail-99",
-            "project_id": "project-1",
-            "key": "plan_construction",
-            "value": [{"date": "2026-01-01", "capacity": 21.0}],
-        }
-    )
-
-    assert created.node_id == "detail-node-old"
-    assert created.data_id == "remote-detail-99"
+    with pytest.raises(RuntimeError, match="project_detail_data load conflict"):
+        handler._create_node(
+            {
+                "id": "remote-detail-99",
+                "project_id": "project-1",
+                "key": "plan_construction",
+                "value": [{"date": "2026-01-01", "capacity": 21.0}],
+            }
+        )
 
 
 @pytest.mark.asyncio