Resource object refresh is invalid

[Thomas Herve]

It passes the result of get_object_object to the resource_db parameter to from_object. But this one actually expects a raw database object, not an already wrapped resource object.

This causes issues with properties encryption.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/209401

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/209401
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=f3101bf9e4f2400e0225c7d3e6f64e6771841a03
Submitter: Jenkins
Branch: master

commit f3101bf9e4f2400e0225c7d3e6f64e6771841a03
Author: Thomas Herve <email address hidden>
Date: Wed Aug 5 10:33:38 2015 +0200

    Fixes Resource object refresh to use db object

    Fix Resource object _refresh method to actually pass a database object
    to _from_db_object, instead of wrapped one. This fixes properties
    encryption.

    Change-Id: I3d8d54fa7441c95fc3de5354f80ce2e7e2ba7054
    Closes-Bug: #1481644