Manifest is in cache with synapse get -q

We are exposing `synapse get -q` to programmatically download data in portals from view queries (here is an example if you click Download Options > Programmatic Options).

I was surprised that when I tested this, the manifest was hidden in my Synapse cache and not the working directory.

When I test this with `synapse get` on a file. There is no manifest downloaded.

I thought I remembered this command downloads a manifest every time, automatically. What is the expected behavior with the manifest?

I'm testing this feature in the context of https://sagebionetworks.jira.com/browse/PLFM-5477.