since that commit:

``
  File "/usr/lib/pymodules/python2.7/salt/client/__init__.py", line 1408, in function
    return func(*args, **kwargs)
  File "/usr/lib/pymodules/python2.7/salt/modules/state.py", line 315, in sls
    opts = copy.deepcopy(__opts__)
  File "/usr/lib/python2.7/copy.py", line 163, in deepcopy
    y = copier(x, memo)
  File "/usr/lib/python2.7/copy.py", line 257, in _deepcopy_dict
    y[deepcopy(key, memo)] = deepcopy(value, memo)
  File "/usr/lib/python2.7/copy.py", line 163, in deepcopy
    y = copier(x, memo)
``

until it ``RuntimeError: maximum recursion depth exceeded in cmp``