def filter_cidr(self, queryset, value):
        if value:
            network_address, _, prefix_length = value.partition('/')
        else:
            return queryset

        return queryset.filter(
            network_address=network_address,
            prefix_length=prefix_length
        )
Resets a dirty flag for the current thread and code streak. This can be used
dataset/ETHPy150Open dropbox/nsot/nsot/api/filters.py/NetworkFilter.filter_cidr--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/db/transaction.py/set_clean