@property
  def results(self):
    return self.__results
Checks how view handles invalid period, it result in period being None - displays all data.
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/datastore/datastore_query.py/Batch.results--crossover with--dataset/ETHPy150Open mozilla/pontoon/pontoon/base/tests/test_views.py/ContributorsTests.test_invalid_period