If we destroy the Blockstore DB state first and then the server-side object
destruction fails, we leave behind a dangling object and potentially Lease DB
state. But if we destroy the object first and the DB state removal fails,
we are left with a blockstore with no server-side object and thus we cannot
look it up in the future to retry the destruction.

We choose to go with the latter and just create a tiny server-side stub
object if the DB state removal fails.