Add Dashboard In Group API operation against "new" workspace returns empty GUID for ID

Using the Add Dashboard In Group REST API operation against a "new" workspace successfully creates the dashboard, but the API response with the dashboard object has an empty GUID for the ID instead of the correct ID for the new dashboard.

This breaks automations that need that ID for additional operations such as cloning tiles into the new dashboard. One can query the API for the dashboards in the workspace and find one with a matching name, but as duplicate names are allowed, one cannot rely on that result as definitive.