Comment 5 for bug 1675500

Maybe something like this patch. It will always use the first few handoffs and only skip if it's itself. Further the scanning to find the handoff node to help global region improvements still happens for those who do want to run write affinity.

The downside is, when the replicator runs on the first handoff it'll pop it off to another, so if a drive it down there will always be an extra one. But one extra is better then _all_ of them.

This is just a first attempt as a possible way forward, no tests have been added.