Fix empty info error

src/pretix/base/invoicing/transmission.py

@@ -21,6 +21,7 @@
 #
 from typing import Optional
 
+from django.utils.translation import gettext_lazy as _
 from django_countries.fields import Country
 
 from pretix.base.models import Invoice, InvoiceAddress
@@ -106,6 +107,22 @@ class TransmissionType:
     def transmission_info_to_form_data(self, transmission_info: dict) -> dict:
         return transmission_info
 
+    def describe_info(self, transmission_info: dict, country: Country, is_business: bool):
+        form_data = self.transmission_info_to_form_data(transmission_info)
+        data = []
+        visible_field_keys = self.invoice_address_form_fields_visible(country, is_business)
+        for k, f in self.invoice_address_form_fields.items():
+            if k not in visible_field_keys:
+                continue
+            v = form_data.get(k)
+            if v is True:
+                v = _("Yes")
+            elif v is False:
+                v = _("No")
+            if v:
+                data.append((f.label, v))
+        return data
+
     def pdf_watermark(self) -> Optional[str]:
         """
         Return a watermark that should be rendered across the PDF file.

src/pretix/base/models/orders.py

@@ -3529,18 +3529,10 @@ class InvoiceAddress(models.Model):
     def describe_transmission(self):
         from pretix.base.invoicing.transmission import transmission_types
         data = []
-
         t, __ = transmission_types.get(identifier=self.transmission_type)
         data.append((_("Transmission type"), t.public_name))
-        form_data = t.transmission_info_to_form_data(self.transmission_info or {})
-        for k, f in t.invoice_address_form_fields.items():
-            v = form_data.get(k)
-            if v is True:
-                v = _("Yes")
-            elif v is False:
-                v = _("No")
-            if v:
-                data.append((f.label, v))
+        if self.transmission_info:
+            data += t.describe_info(self.transmission_info, self.country, self.is_business)
         return data