HOT-FIX: Fixes #3366

sapl/base/views.py

@@ -2129,7 +2129,7 @@ class EditUsuarioView(PermissionRequiredMixin, UpdateView):
 
         user.save()
 
-        for g in user.groups.all():
+        for g in user.groups.all().exclude(name='Votante'):
                 g.user_set.remove(user)
 
         groups = Group.objects.filter(id__in=data['roles'])