From b9657c763a88921ab456992f061a52b4fe08deb2 Mon Sep 17 00:00:00 2001
From: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Fri, 18 Dec 2009 18:46:40 +0000
Subject: - Fixed bug preventing alias() of an alias() from being cloned or
 adapted (occurs frequently in ORM operations). [ticket:1641]

---
 lib/sqlalchemy/sql/expression.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'lib/sqlalchemy/sql/expression.py')

diff --git a/lib/sqlalchemy/sql/expression.py b/lib/sqlalchemy/sql/expression.py
index a87ef9bd1..2f0ac90af 100644
--- a/lib/sqlalchemy/sql/expression.py
+++ b/lib/sqlalchemy/sql/expression.py
@@ -2819,7 +2819,7 @@ class Alias(FromClause):
         self.element = _clone(self.element)
         baseselectable = self.element
         while isinstance(baseselectable, Alias):
-            baseselectable = baseselectable.selectable
+            baseselectable = baseselectable.element
         self.original = baseselectable
 
     def get_children(self, column_collections=True, aliased_selectables=True, **kwargs):
-- 
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