Apply suggestion from @Carreau

Carreau · web-flow · commit 0ca68e4980cf · 2026-05-07T10:57:19.000+02:00
diff --git a/tests/conftest.py b/tests/conftest.py
@@ -36,7 +36,7 @@ def _garbage_collection(request):
     tracemalloc = None
 
 # ensure we don't leak history managers
-HistoryManager._max_inst = 1
+HistoryManager._max_inst = 2
 
 pytestmark = pytest.mark.anyio
 
