Order change: Allow to ignore quotas

src/pretix/control/forms/orders.py

@@ -177,6 +177,10 @@ class OtherOperationsForm(forms.Form):
             'Send an email to the customer notifying that their order has been changed.'
         )
     )
+    ignore_quotas = forms.BooleanField(
+        label=_('Allow to overbook quotas when performing this operation'),
+        required=False,
+    )
 
     def __init__(self, *args, **kwargs):
         kwargs.pop('order')

src/pretix/control/templates/pretixcontrol/order/change.html

@@ -206,6 +206,9 @@
                 </div>
             </div>
         </div>
+        <div class="">
+            {% bootstrap_field other_form.ignore_quotas layout="" %}
+        </div>
         <div class="form-group submit-group">
             <a class="btn btn-default btn-lg"
                     href="{% url "control:event.order" event=request.event.slug organizer=request.event.organizer.slug code=order.code %}">

src/pretix/control/views/orders.py

@@ -1259,7 +1259,7 @@ class OrderChange(OrderView):
             messages.error(self.request, _('An error occurred. Please see the details below.'))
         else:
             try:
-                ocm.commit()
+                ocm.commit(check_quotas=not self.other_form.cleaned_data['ignore_quotas'])
             except OrderError as e:
                 messages.error(self.request, str(e))
             else: