Fudge: @patch not working when from X import Y'ing instead of import X?

I came across a strange bahviour of the patch decorator in Fudge 1.0.3. It does not patch the module when importing classes via

from <module> import <class>

but works fine when importing

import <module>

with the corresponding code adaption.

Here's a minimalized setup:

mdle.py:

class Klaas(object):

    def __init__(self):
        # easyest way to signal this class has been instantiated accidently
        raise Exception(">:[")

some.py (test not working):

from mdle import Klaas()
def instantiate():
    instance = Klaas()

some.py (test working):

import mdle
def instantiate():
    instance = mdle.Klaas()

some_test.py:

import unittest
import fudge

import some

class SomeTest(unittest.TestCase):

    @fudge.patch("mdle.Klaas")
    def test_somethingb(self, Klaas_mock):
        klaas_inst = (Klaas_mock.expects_call()
                            .returns_fake())


        # Receiving the exception
        some.instantiate()

Should I patch in a different way? Is this a limitation of Fudge, or a bug?