Comment 1 for bug 1361125

looks like this may have broke with a recent sync from Oslo:

https://github.com/openstack/keystone/commit/94efafd6d6066f63a9226a6b943d0e86699e7edd#diff-a5549dd8762c0390386427fa7b2ff209

We use jsonutils from oslo-incubator in the migration_helpers.py script and uses jsonutils.dumps() from o-i.

https://github.com/openstack/keystone/blob/de2c6e15b9f45969c307ac6d1f634d933537aeaa/keystone/common/sql/migration_helpers.py#L47

The 'namedtuple_as_object' change went into o-i here https://review.openstack.org/#/c/113760/