  
          # Flatening data and removing EMPTY_VALUEs from the lists
          data = self.flatten_data(data)
  
          # Strip any parameters that we are treating as reserved
          for key in data:
              if key in self.resource.RESERVED_FORM_PARAMS:
                  data.pop(key)
 
</s> remove 
        if request.method == 'POST':
 </s> add         elif request.method == 'POST':
        for key in filter(lambda k: self.is_a_list(k), data):
            self.remove_empty_val(data[key])
  
          # Flatening data and removing EMPTY_VALUEs from the lists
          data = self.flatten_data(data)
        for key in filter(lambda k: self.is_a_list(k), data):
            self.remove_empty_val(data[key])
  
          # Strip any parameters that we are treating as reserved
          for key in data:
              if key in self.resource.RESERVED_FORM_PARAMS:
                  data.pop(key)
keep keep add keep keep keep keep keep
 FomrParser now implements a work around for empty values in a list 
djangorestframework/parsers.py