sqlalchemy error when foreign key relation has column and table with identical names

[JohnHBrock]

When using a postgres DB with the following tables and foreign key relationship...

CREATE TABLE bar
(
  id integer NOT NULL,
  value text,
  CONSTRAINT "PK_bar" PRIMARY KEY (id)
);

CREATE TABLE foo
(
  id integer NOT NULL,
  bar integer,
  CONSTRAINT "PK_foo" PRIMARY KEY (id),
  CONSTRAINT "FK_foo_bar" FOREIGN KEY (bar)
      REFERENCES bar (id) MATCH SIMPLE
      ON UPDATE NO ACTION ON DELETE NO ACTION
);

...I get the following error when running sandmanctl:

Traceback (most recent call last):
  File "C:\Python27\lib\runpy.py", line 162, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "C:\Python27\lib\runpy.py", line 72, in _run_code
    exec code in run_globals
  File "C:\Python27\Scripts\sandmanctl.exe\__main__.py", line 9, in <module>
  File "C:\Python27\lib\site-packages\click\core.py", line 664, in __call__
    return self.main(*args, **kwargs)
  File "C:\Python27\lib\site-packages\click\core.py", line 644, in main
    rv = self.invoke(ctx)
  File "C:\Python27\lib\site-packages\click\core.py", line 837, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "C:\Python27\lib\site-packages\click\core.py", line 464, in invoke
    return callback(*args, **kwargs)
  File "C:\Python27\lib\site-packages\sandman\sandmanctl.py", line 43, in run
    activate(name='sandmanctl')
  File "C:\Python27\lib\site-packages\sandman\model\utils.py", line 188, in activate
    register_classes_for_admin(db.session, show_pks, name)
  File "C:\Python27\lib\site-packages\sandman\model\utils.py", line 160, in register_classes_for_admin
    admin_view.add_view(admin_view_class(cls, db_session))
  File "C:\Python27\lib\site-packages\flask_admin\contrib\sqla\view.py", line 289, in __init__
    menu_icon_value=menu_icon_value)
  File "C:\Python27\lib\site-packages\flask_admin\model\base.py", line 584, in __init__
    self._refresh_cache()
  File "C:\Python27\lib\site-packages\flask_admin\model\base.py", line 653, in _refresh_cache
    self._list_columns = self.get_list_columns()
  File "C:\Python27\lib\site-packages\flask_admin\model\base.py", line 729, in get_list_columns
    columns = self.scaffold_list_columns()
  File "C:\Python27\lib\site-packages\flask_admin\contrib\sqla\view.py", line 384, in scaffold_list_columns
    for p in self._get_model_iterator():
  File "C:\Python27\lib\site-packages\flask_admin\contrib\sqla\view.py", line 311, in _get_model_iterator
    return model._sa_class_manager.mapper.iterate_properties
  File "C:\Python27\lib\site-packages\sqlalchemy\orm\mapper.py", line 1803, in iterate_properties
    configure_mappers()
  File "C:\Python27\lib\site-packages\sqlalchemy\orm\mapper.py", line 2589, in configure_mappers
    mapper._post_configure_properties()
  File "C:\Python27\lib\site-packages\sqlalchemy\orm\mapper.py", line 1694, in _post_configure_properties
    prop.init()
  File "C:\Python27\lib\site-packages\sqlalchemy\orm\interfaces.py", line 144, in init
    self.do_init()
  File "C:\Python27\lib\site-packages\sqlalchemy\orm\relationships.py", line 1549, in do_init
    self._process_dependent_arguments()
  File "C:\Python27\lib\site-packages\sqlalchemy\orm\relationships.py", line 1573, in _process_dependent_arguments
    setattr(self, attr, attr_value())
  File "C:\Python27\lib\site-packages\sqlalchemy\ext\declarative\clsregistry.py", line 271, in __call__
    x = eval(self.arg, globals(), self._dict)
  File "<string>", line 1, in <module>
  File "C:\Python27\lib\site-packages\sqlalchemy\ext\declarative\clsregistry.py", line 216, in __getattr__
    " directly to a Column)." % key)
sqlalchemy.exc.InvalidRequestError: Property 'bar' is not an instance of ColumnProperty (i.e. does not correspond directly to a Column).

The appears to be because of the foreign key between foo.bar and bar.id: the error happens whenever the foreign key column and parent table have the same name.