With the super-light mode described in https://bugzilla.yoctoproject.org/show_bug.cgi?id=6651 it would be possible for a user to not have some of the sstate artifacts from the published SDK installed/local. In order to facilitate offline work for a "super-light" partially setup SDK, add a mechanism to pull all necessary items/sstate local. This would allow the user to continue using the SDK even if the user went to a site without network access.
Still worth doing when we have the people available. -- YP bug review.