Questions step: Only prefill customer name for first ticket (#2555)

src/pretix/base/views/mixins.py

@@ -58,7 +58,7 @@ class BaseQuestionsViewMixin:
     def _positions_for_questions(self):
         raise NotImplementedError()
 
-    def get_question_override_sets(self, position):
+    def get_question_override_sets(self, position, index):
         return []
 
     def question_form_kwargs(self, cr):
@@ -72,7 +72,7 @@ class BaseQuestionsViewMixin:
         submitted at once.
         """
         formlist = []
-        for cr in self._positions_for_questions:
+        for idx, cr in enumerate(self._positions_for_questions):
             cartpos = cr if isinstance(cr, CartPosition) else None
             orderpos = cr if isinstance(cr, OrderPosition) else None
 
@@ -96,7 +96,7 @@ class BaseQuestionsViewMixin:
                 ))
             )
 
-            override_sets = self.get_question_override_sets(cr)
+            override_sets = self.get_question_override_sets(cr, idx)
             for overrides in override_sets:
                 for question_name, question_field in form.fields.items():
                     if hasattr(question_field, 'question'):

src/pretix/presale/checkoutflow.py

@@ -735,9 +735,9 @@ class QuestionsStep(QuestionsViewMixin, CartMixin, TemplateFlowStep):
 
         return f
 
-    def get_question_override_sets(self, cart_position):
+    def get_question_override_sets(self, cart_position, index):
         o = []
-        if self.cart_customer:
+        if self.cart_customer and index == 0:
             o.append({
                 'attendee_name_parts': {
                     'initial': self.cart_customer.name_parts

src/pretix/presale/views/order.py

@@ -729,7 +729,7 @@ class OrderModify(EventViewMixin, OrderDetailMixin, OrderQuestionsViewMixin, Tem
             return []
         return super().positions
 
-    def get_question_override_sets(self, order_position):
+    def get_question_override_sets(self, order_position, index):
         override_sets = [
             resp for recv, resp in question_form_fields_overrides.send(
                 self.request.event,