From 28a3f152061724de9583da9ea83b54e9ababbcc1 Mon Sep 17 00:00:00 2001
From: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Sun, 23 Jun 2013 16:08:01 -0400
Subject: tweak this for now, would need a test

---
 lib/sqlalchemy/schema.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'lib/sqlalchemy/schema.py')

diff --git a/lib/sqlalchemy/schema.py b/lib/sqlalchemy/schema.py
index d2df3de1d..fa13d7065 100644
--- a/lib/sqlalchemy/schema.py
+++ b/lib/sqlalchemy/schema.py
@@ -1560,10 +1560,10 @@ class ForeignKey(SchemaItem):
     def _remove_from_metadata(self, metadata):
         parenttable, table_key, colname = self._resolve_col_tokens()
         fk_key = (table_key, colname)
-        try:
+
+        if self in metadata._fk_memos[fk_key]:
+            # TODO: no test coverage for self not in memos
             metadata._fk_memos[fk_key].remove(self)
-        except:
-            pass
 
     def _set_table(self, column, table):
         # standalone ForeignKey - create ForeignKeyConstraint
-- 
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