Show "sold out" if all quota is blocked by orders, even unpaid ones

src/pretix/base/models/items.py

@@ -591,7 +591,7 @@ class Quota(LoggedModel):
 
         size_left -= self.count_blocking_vouchers(now_dt)
         if size_left <= 0:
-            return Quota.AVAILABILITY_ORDERED, 0
+            return Quota.AVAILABILITY_RESERVED, 0
 
         size_left -= self.count_in_cart(now_dt)
         if size_left <= 0:

src/pretix/presale/templates/pretixpresale/event/fragment_availability.html

@@ -1,6 +1,6 @@
 {% load i18n %}
 {% load eventurl %}
-{% if avail == 0 %}
+{% if avail <= 10 %}
     <div class="col-md-2 col-xs-6 availability-box gone">
         <strong>{% trans "SOLD OUT" %}</strong>
         {% if event.settings.waiting_list_enabled %}