test: the auto-inject path now logs two retrievals, and that is the point

45ba4aa made the reuse slot log its query (source: reuse_slot). The margin-gate
test pinned record_retrieval to exactly one call, which was asserting the very
asymmetry #2463 fixed — the displaced hit logged, the displacing query not.
Assert both sources in order instead.

Refs #2463

tests/test_services_plugin_context.py

@@ -104,9 +104,12 @@ async def test_build_autoinject_hint_titles_only_with_margin_gate():
     assert "#33" not in out["context"]
     # Title-first: no body text, ever.
     assert "get_note(id)" in out["context"]
-    # Telemetry fired with the auto_inject source and the full candidate set.
+    # Telemetry fired for BOTH retrievals this path runs: the scored menu and
-    rec.assert_called_once()
+    # the reuse-slot query competing against it. The slot's query used to be
-    assert rec.call_args.kwargs["source"] == "auto_inject"
+    # the one unlogged retrieval on this path — the hit it displaced was in
+    # retrieval_logs, the query that displaced it was not (#2463).
+    sources = [c.kwargs["source"] for c in rec.call_args_list]
+    assert sources == ["auto_inject", "reuse_slot"]
 
 
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