Minor: Fixed typo in comment

dav_events/views/events.py

@@ -713,7 +713,7 @@ class EventCreateView(EventPermissionMixin, generic.FormView):
         else:
             event.editor = self.request.user
 
-            # Check for double submission (seems to happens accidentally if smartphone user reload the submit page)
+            # Check for double submission (seems to happen accidentally if smartphone user reload the submit page)
             possible_doublets = models.Event.objects.filter(owner=event.owner,
                                                             title=event.title,
                                                             first_day=event.first_day)