fill out all distinguising fields for AliasedInsp

Hardened the cache key strategy for the :func:`_orm.aliased` and
:func:`_orm.with_polymorphic` constructs. While no issue involving actual
statements being cached can easily be demonstrated (if at all), these two
constructs were not including enough of what makes them unique in their
cache keys for caching on the aliased construct alone to be accurate.

Fixes: #8401
Change-Id: I13d14985b6965f398edd9494601d8ae89ac641f2

1 files changed, 13 insertions, 6 deletions

diff --git a/lib/sqlalchemy/orm/util.py b/lib/sqlalchemy/orm/util.py
index 02080a27f..9a5399af0 100644
--- a/lib/sqlalchemy/orm/util.py
+++ b/lib/sqlalchemy/orm/util.py
@@ -748,6 +748,19 @@ class AliasedInsp(
         "_nest_adapters",
     )
 
+    _cache_key_traversal = [
+        ("name", visitors.ExtendedInternalTraversal.dp_string),
+        ("_adapt_on_names", visitors.ExtendedInternalTraversal.dp_boolean),
+        ("_use_mapper_path", visitors.ExtendedInternalTraversal.dp_boolean),
+        ("_target", visitors.ExtendedInternalTraversal.dp_inspectable),
+        ("selectable", visitors.ExtendedInternalTraversal.dp_clauseelement),
+        (
+            "with_polymorphic_mappers",
+            visitors.InternalTraversal.dp_has_cache_key_list,
+        ),
+        ("polymorphic_on", visitors.InternalTraversal.dp_clauseelement),
+    ]
+
     mapper: Mapper[_O]
     selectable: FromClause
     _adapter: sql_util.ColumnAdapter
@@ -940,12 +953,6 @@ class AliasedInsp(
     def entity_namespace(self) -> AliasedClass[_O]:
         return self.entity
 
-    _cache_key_traversal = [
-        ("name", visitors.ExtendedInternalTraversal.dp_string),
-        ("_adapt_on_names", visitors.ExtendedInternalTraversal.dp_boolean),
-        ("selectable", visitors.ExtendedInternalTraversal.dp_clauseelement),
-    ]
-
     @property
     def class_(self) -> Type[_O]:
         """Return the mapped class ultimately represented by this