some old configs had a value like
access: <data>
in the yaml. this would end up causing migration to
create a json file where it had no access values and
a default name of the data. that's not what the command
expects to operate on, so now we fix that during
migration and add a little mini migration for any
users that may have hit it.
Change-Id: I4c98ca5d09d043fe9338738ef6b4f930f933892c