Voucher form needs to be processed first

Because otherwise, the firstform (which will not be in a valid start)
throws errors which prevent the voucher form from ever being processed.

vendor/registrasion/registrasion/views.py

@@ -986,6 +986,19 @@ def amend_registration(request, user_id):
     user = User.objects.get(id=int(user_id))
     current_cart = CartController.for_user(user)
 
+    voucher_form = forms.VoucherForm(
+        request.POST or None,
+        prefix="voucher",
+    )
+
+    if request.POST and voucher_form.has_changed() and voucher_form.is_valid():
+        try:
+            current_cart.apply_voucher(voucher_form.cleaned_data["voucher"])
+            return redirect(amend_registration, user_id)
+        except ValidationError as ve:
+            voucher_form.add_error(None, ve)
+
+ 
     items = commerce.ProductItem.objects.filter(
         cart=current_cart.cart,
     ).select_related("product")
@@ -1002,11 +1015,6 @@ def amend_registration(request, user_id):
         queryset = inventory.Product.objects.filter(id=item.product.id)
         form.fields["product"].queryset = queryset
 
-    voucher_form = forms.VoucherForm(
-        request.POST or None,
-        prefix="voucher",
-    )
-
     if request.POST and formset.is_valid():
 
         pq = [
@@ -1029,13 +1037,6 @@ def amend_registration(request, user_id):
                     if form.cleaned_data["product"] == product:
                         form.add_error("quantity", message)
 
-    if request.POST and voucher_form.has_changed() and voucher_form.is_valid():
-        try:
-            current_cart.apply_voucher(voucher_form.cleaned_data["voucher"])
-            return redirect(amend_registration, user_id)
-        except ValidationError as ve:
-            voucher_form.add_error(None, ve)
-
     ic = ItemController(user)
     data = {
         "user": user,