pedro-martins

Do you guys know any problem, with lib pyparsing? seems to be breaking operations that contains the `in` operator like in test `self._do_test('foo in ["null", "foo"]', {"in": {"foo": ["null", "foo"]}})`...

Thanks tobias, fix applied.

> if i'm honest, i'm not entirely sure this is the ideal implementation or behaviour but i'm also not as involved anymore and can see it's a valid use case...