Enable time machine only in testmode

src/pretix/base/timemachine.py

@@ -48,6 +48,7 @@ class TimeMachineMiddleware:
     def __call__(self, request):
         if hasattr(request, 'event') and hasattr(request, '_namespace') and request._namespace == 'presale' and \
                 'timemachine_now_dt' in request.session and \
+                request.event.testmode and \
                 request.user.has_event_permission(request.organizer, request.event, 'can_change_event_settings', request):
             request.now_dt = parse(request.session['timemachine_now_dt'])
             request.now_dt_is_fake = True

src/pretix/control/templates/pretixcontrol/event/live.html

@@ -124,6 +124,7 @@
             <div class="clear"></div>
         </div>
     </div>
+    {% if request.event.testmode %}
     <div class="panel {% if request.session.timemachine_now_dt %}panel-success{% else %}panel-default{% endif %}">
         <div class="panel-heading">
             {% trans "Time machine" %}
@@ -151,6 +152,7 @@
             <div class="clear"></div>
         </div>
     </div>
+    {% endif %}
     <div class="text-right">
         <a href="{% url "control:event.dangerzone" organizer=request.organizer.slug event=request.event.slug %}"
                 class="btn btn-default btn-lg">