Invoice addresses: Ask for a state in some countries (#1362)

* Invoice addresses: Ask for a state in some countries

* API, tests, noscript

* Fix shredder tests

* Add test for addresses with long state names

src/tests/base/test_shredders.py

@@ -171,6 +171,7 @@ def test_invoice_address_shredder(event, order):
         data={
             "data": [{"attendee_name": "Hans", "question_1": "Test"}],
             "invoice_data": {"name": "Peter", "country": "DE", "is_business": False, "internal_reference": "",
+                             "state": "",
                              "company": "ACME", "street": "Sesam Street", "city": "Sample City", "zipcode": "12345"}
         }
     )
@@ -189,6 +190,7 @@ def test_invoice_address_shredder(event, order):
             'last_modified': ia.last_modified.isoformat().replace('+00:00', 'Z'),
             'name': '',
             'name_parts': {},
+            'state': '',
             'street': '221B Baker Street',
             'vat_id': '',
             'vat_id_validated': False,
@@ -202,7 +204,7 @@ def test_invoice_address_shredder(event, order):
     assert l1.parsed_data == {
         "data": [{"attendee_name": "Hans", "question_1": "Test"}],
         "invoice_data": {"name": "█", "country": "█", "is_business": False, "internal_reference": "", "company": "█",
-                         "street": "█", "city": "█", "zipcode": "█"}
+                         "street": "█", "city": "█", "zipcode": "█", "state": ""}
     }
 
 
@@ -258,7 +260,7 @@ def test_invoice_shredder(event, order):
     inv = generate_invoice(order)
     invoice_pdf_task.apply(args=(inv.pk,))
     inv.refresh_from_db()
-    assert inv.invoice_to == "Acme Company\n\n221B Baker Street\n12345 London"
+    assert inv.invoice_to == "Acme Company\n221B Baker Street\n12345 London"
     assert inv.file
     fname = inv.file.path
     assert os.path.exists(fname)