- merged sync_simplify branch

- The methodology behind "primaryjoin"/"secondaryjoin" has
been refactored.  Behavior should be slightly more
intelligent, primarily in terms of error messages which
have been pared down to be more readable.  In a slight
number of scenarios it can better resolve the correct
foreign key than before.
- moved collections unit test from relationships.py to collection.py
- PropertyLoader now has "synchronize_pairs" and "equated_pairs"
collections which allow easy access to the source/destination
parent/child relation between columns (might change names)
- factored out ClauseSynchronizer (finally)
- added many more tests for priamryjoin/secondaryjoin
error checks

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/sqlalchemy/schema.py b/lib/sqlalchemy/schema.py
index 96ec5b8de..a4028c1ef 100644
--- a/lib/sqlalchemy/schema.py
+++ b/lib/sqlalchemy/schema.py
@@ -553,7 +553,7 @@ class Column(SchemaItem, expression._ColumnClause):
     def references(self, column):
         """Return True if this references the given column via a foreign key."""
         for fk in self.foreign_keys:
-            if fk.column is column:
+            if fk.references(column.table):
                 return True
         else:
             return False