With the HTTP API regarding tombstones here's what we currently have:
It seems the easiest way to approach this since we're returning a 404 in 1. is to add the X-Riak-Deleted header there for consistency with 2a.
In the case of 2b. ... ? @seancribbs is lobbying that we remove the fetch each sibling via the ?vtag=XXXXX method since there's no logical reason to do so. At the very least we should add the X-Riak-Deleted header (and IMHO make it return a 404).
Resolved by #520