RuntimeError: error while translating coordinate: 'latitude' on cf2cdm.translate_coords

[alexamici]

GRIB files that produce a non-dimension coordinate (for example rotated_ll) crash when attemping to cf2cdm.translate_coords:

>>> cf2cdm.translate_coords(rotated_ll_data, coord_model=cf2cdm.CDS)
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
~/devel/MPY/cfgrib/cf2cdm/cfcoords.py in translate_coords(data, coord_model, errors, coord_translators)
    172         try:
--> 173             data = translator(cf_name, data, coord_model=coord_model)
    174         except:

~/devel/MPY/cfgrib/cf2cdm/cfcoords.py in coord_translator(default_out_name, default_units, default_direction, is_cf_type, cf_type, data, coord_model)
     79         data.coords[out_name].attrs['units'] = units
---> 80     data = translate_direction(data, out_name, stored_direction)
     81     return data

~/devel/MPY/cfgrib/cf2cdm/cfcoords.py in translate_direction(data, out_name, stored_direction)
     49     values = data.coords[out_name].values
---> 50     if values[-1] > values[0] and stored_direction == 'decreasing':
     51         data = data.isel({out_name: slice(None, None, -1)})

ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()

During handling of the above exception, another exception occurred:

RuntimeError                              Traceback (most recent call last)
<ipython-input-25-f05da76a7f8c> in <module>
----> 1 cosmo = cf2cdm.translate_coords(cosmo, coord_model=cf2cdm.CDS)

~/devel/MPY/cfgrib/cf2cdm/cfcoords.py in translate_coords(data, coord_model, errors, coord_translators)
    174         except:
    175             if errors != 'ignore':
--> 176                 raise RuntimeError("error while translating coordinate: %r" % cf_name)
    177     return data
    178 

RuntimeError: error while translating coordinate: 'latitude'