cookiejar.iteritems() is broken after 2.1.0 update

    Python 2.7.5+ (default, Sep 19 2013, 13:48:49) 
    [GCC 4.8.1] on linux2
    Type "help", "copyright", "credits" or "license" for more information.
    >>> import requests
    >>> requests.__version__
    '2.1.0'
    >>> r = requests.get('http://google.com')
    >>> r.cookies
    <<class 'requests.cookies.RequestsCookieJar'>[Cookie(version=0, name='NID', value='67=WbyIM1gU91bGQ5Y3SjPHQ8_fqtStHiMWGJQ5n2Bt_PwytcmPii7fV7AELJ95cqfSmhAHSJCtFm0bBDZJJoTzQHGGQvk6PT8h78PrwWi96r0K7R9N0KsNCZkkrgJW94dV', port=None, port_specified=False, domain='.google.ru', domain_specified=True, domain_initial_dot=True, path='/', path_specified=True, secure=False, expires=1403146705, discard=False, comment=None, comment_url=None, rest={'HttpOnly': None}, rfc2109=False), Cookie(version=0, name='PREF', value='ID=7c3265d2706e8bea:FF=0:NW=1:TM=1387335505:LM=1387335505:S=LsdqbwGuUdHENT0m', port=None, port_specified=False, domain='.google.ru', domain_specified=True, domain_initial_dot=True, path='/', path_specified=True, secure=False, expires=1450407505, discard=False, comment=None, comment_url=None, rest={}, rfc2109=False)]>
    >>> dict(r.cookies)
    {'PREF': 'ID=7c3265d2706e8bea:FF=0:NW=1:TM=1387335505:LM=1387335505:S=LsdqbwGuUdHENT0m', 'NID': '67=WbyIM1gU91bGQ5Y3SjPHQ8_fqtStHiMWGJQ5n2Bt_PwytcmPii7fV7AELJ95cqfSmhAHSJCtFm0bBDZJJoTzQHGGQvk6PT8h78PrwWi96r0K7R9N0KsNCZkkrgJW94dV'}
    >>> r.cookies.items()
    [('NID', '67=WbyIM1gU91bGQ5Y3SjPHQ8_fqtStHiMWGJQ5n2Bt_PwytcmPii7fV7AELJ95cqfSmhAHSJCtFm0bBDZJJoTzQHGGQvk6PT8h78PrwWi96r0K7R9N0KsNCZkkrgJW94dV'), ('PREF', 'ID=7c3265d2706e8bea:FF=0:NW=1:TM=1387335505:LM=1387335505:S=LsdqbwGuUdHENT0m')]
    >>> r.cookies.iteritems()
    <generator object iteritems at 0x1940dc0>
    >>> list(r.cookies.iteritems())
    Traceback (most recent call last):
      File "<stdin>", line 1, in <module>
      File "/home/kpp/build/trng_social/venv/lib/python2.7/_abcoll.py", line 387, in iteritems
        yield (key, self[key])
      File "/home/kpp/build/trng_social/venv/local/lib/python2.7/site-packages/requests/cookies.py", line 267, in __getitem__
        return self._find_no_duplicates(name)
      File "/home/kpp/build/trng_social/venv/local/lib/python2.7/site-packages/requests/cookies.py", line 322, in _find_no_duplicates
        raise KeyError('name=%r, domain=%r, path=%r' % (name, domain, path))
    KeyError: "name=Cookie(version=0, name='NID', value='67=WbyIM1gU91bGQ5Y3SjPHQ8_fqtStHiMWGJQ5n2Bt_PwytcmPii7fV7AELJ95cqfSmhAHSJCtFm0bBDZJJoTzQHGGQvk6PT8h78PrwWi96r0K7R9N0KsNCZkkrgJW94dV', port=None, port_specified=False, domain='.google.ru', domain_specified=True, domain_initial_dot=True, path='/', path_specified=True, secure=False, expires=1403146705, discard=False, comment=None, comment_url=None, rest={'HttpOnly': None}, rfc2109=False), domain=None, path=None"