Reset cache default to 0
Reset cache default to 0

None breaks the ansible inventory script.

Change-Id: Iac30cdcce3a51910e0b373521263b239f7478a15

openstack/python-openstacksdk,switch-ch/os-client-config,stackforge/python-openstacksdk,dtroyer/python-openstacksdk,openstack/os-client-config,dtroyer/python-openstacksdk,dtroyer/os-client-config,stackforge/python-openstacksdk,redhat-openstack/os-client-config,openstack/python-openstacksdk