Distribution interceptors re-compute key location after remote get

If the distribution interceptors don't find a key remotely, they try again to retrieve it from the local data container. Before reading the local value, though, they compute the key's ownership again, to make sure they don't read a stale value that was previously owned by the local node.

Most of the time, the topology doesn't change during the invocation through the interceptor chain, so there's no need to look up the value locally again, or to re-compute the key's location.