Fixes race condition in project SA
Fixes race condition in project SA

https://github.com/GoogleCloudPlatform/deploymentmanager-samples/issues/363
https://github.com/GoogleCloudPlatform/deploymentmanager-samples/issues/420

GoogleCloudPlatform/cloud-foundation-toolkit,GoogleCloudPlatform/cloud-foundation-toolkit,GoogleCloudPlatform/cloud-foundation-toolkit,GoogleCloudPlatform/cloud-foundation-toolkit,GoogleCloudPlatform/cloud-foundation-toolkit