I have python provider of LMI_HostedStorageService association class (association between CIM_OperatingSystem and LMI_StorageService). If I call CIM_OperatingSystem.References with Role argument, I get CIMError: (1, "** this shouldn't happen").

Reproducer (in lmishell):
os=root.Linux_ComputerSystem.first_instance()
os.references(Role='Antecedent', ResultClass="LMI_HostedStorageService")

Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "/usr/lib/python2.7/site-packages/lmi/lmi_client_shell.py", line 387, in wrapped
    return fn(self, *args, **kwargs)
  File "/usr/lib/python2.7/site-packages/lmi/lmi_client_shell.py", line 573, in references
    references_list = self._client._get_references(self._inst, **references_args)
  File "/usr/lib/python2.7/site-packages/lmi/lmi_client_base.py", line 172, in _get_references
    return self._cliconn.References(instance.path, **params)
  File "/usr/lib/python2.7/site-packages/pywbem/cim_operations.py", line 749, in References
    **params)
  File "/usr/lib/python2.7/site-packages/pywbem/cim_operations.py", line 219, in imethodcall
    raise CIMError(code, tt[1]['DESCRIPTION'])


Version-Release number of selected component (if applicable):
pywbem-0.7.0-7.fc18.noarch