diff --git a/shared/infrastructure/factory.py b/shared/infrastructure/factory.py
index 6505890..b6b6e52 100644
--- a/shared/infrastructure/factory.py
+++ b/shared/infrastructure/factory.py
@@ -179,6 +179,7 @@ def create_base_app(
                         qs.pop("uid", None)
                         qs.pop("grant_token", None)
                         qs.pop("cart_sid", None)
+                        g.user = None
                         return
 
                 from sqlalchemy import select
@@ -199,6 +200,7 @@ def create_base_app(
                     qs.pop("uid", None)
                     qs.pop("grant_token", None)
                     qs.pop("cart_sid", None)
+                    g.user = None
                 return
 
             # Case 2: not logged in — prompt=none OAuth (GET, non-HTMX only)