Fix bug introduced in previous commit (exclude became filter)

 - Legacy-Id: 17143

Author: OleLaursen

ietf/secr/sreq/views.py

@@ -591,7 +591,7 @@ def new(request, acronym):
     # pre-populated with data from last meeeting's session request
     elif request.method == 'GET' and 'previous' in request.GET:
         previous_meeting = Meeting.objects.get(number=str(int(meeting.number) - 1))
-        previous_sessions = add_event_info_to_session_qs(Session.objects.filter(meeting=previous_meeting, group=group)).filter(current_status__in=['notmeet', 'deleted']).order_by('id')
+        previous_sessions = add_event_info_to_session_qs(Session.objects.filter(meeting=previous_meeting, group=group)).exclude(current_status__in=['notmeet', 'deleted']).order_by('id')
         if not previous_sessions:
             messages.warning(request, 'This group did not meet at %s' % previous_meeting)
             return redirect('ietf.secr.sreq.views.new', acronym=acronym)