No hay tests que chequeen como parseamos observaciones

[WhyNotHugo]

El único tests acá está comentado:

django-afip/testapp/testapp/testmain/tests/test_webservices.py

Lines 264 to 281 in b418225

	@skip("Currently not working -- needs to get looked at.")
	def test_validation_with_observations(self):
	receipt = factories.ReceiptFactory(
	document_number=20291144404,
	document_type__code=80,
	point_of_sales=models.PointOfSales.objects.first(),
	receipt_type__code=1,
	)
	factories.VatFactory(vat_type__code=5, receipt=receipt)
	factories.TaxFactory(tax_type__code=3, receipt=receipt)
	errs = models.Receipt.objects.all().validate()
	assert len(errs) == 0
	assert receipt.validation.result == models.ReceiptValidation.RESULT_APPROVED
	assert models.ReceiptValidation.objects.count() == 1
	assert models.Observation.objects.count() == 1
	assert receipt.validation.observations.count() == 1

Habría que buscar un caso que sepamos con certeza siempre devuelve observaciones, y crear un test de ese.