moved iteration of props so that props can set up self-referring backref properties...

diff --git a/lib/sqlalchemy/mapping/mapper.py b/lib/sqlalchemy/mapping/mapper.py
index 2e69a1e66188f3d6b4c7f36f0c49ab3975453d4c..72b796f2720fdd9955ed9952c89040bd921492f9 100644 (file)
--- a/lib/sqlalchemy/mapping/mapper.py
+++ b/lib/sqlalchemy/mapping/mapper.py
@@ -171,7 +171,8 @@ class Mapper(object):
                     self.props[key].parent = self
                     self.props[key].key = None  # force re-init
 
-        for key, prop in self.props.iteritems():
+        l = [(key, prop) for key, prop in self.props.iteritems()]
+        for key, prop in l:
             if getattr(prop, 'key', None) is None:
                 prop.init(key, self)