##### heat/engine/resources/openstack/nova/server.py #####
 if self.is_using_neutron():
            rules.extend([
                translation.TranslationRule(
                    props,
                    translation.TranslationRule.RESOLVE,
                    translation_path=[self.NETWORKS, self.NETWORK_ID],   <------------ here
                    client_plugin=self.client_plugin('neutron'),
                    finder='find_resourceid_by_name_or_id',
                    entity='network'),

##### heat/engine/resources/openstack/sahara/cluster.py #####
        if self.is_using_neutron():
            rules.extend([
                translation.TranslationRule(
                    props,
                    translation.TranslationRule.RESOLVE,                <------------NOT here
                    [self.MANAGEMENT_NETWORK],
                    client_plugin=self.client_plugin('neutron'),
                    finder='find_resourceid_by_name_or_id',
                    entity='network')])