BlobStore::blobMetadata returns null for with / characters with GCS

final BlobMetadata blobMetadata = blobStore.blobMetadata(containerName, blobStorePath);
ContentMetadata contentMetadata = blobMetadata.getContentMetadata(); // This statement will throw NullPointerException when run with Google Cloud Storage.

Upon listing objects using
blobStore.list(containerName, (recursive) ? listContainerOptions.recursive() : listContainerOptions);

I can see metadata through "StorageMetadata"

Looks like bug is in blobMetadata.

I've attached test code. TestGoogleCloudStorageService fails; expected result is for that to pass.