Updated openstack/openstack
Project: openstack/heat  dd4185e66b99825456a6ca22ee5201d9a42aa17f
null
Always answer empty list if deployments not ready

An empty deployments will cause json decode exception, and once
deployments=[] coming, it will trigger another refresh. Always answer
empty list when deployments not ready will solve above two issues.

Change-Id: Iaee3a3ef25cf9907aaefd941dcb316ecb25a29d6
Closes-Bug: #1298417