refactor: sealing: minor refactor of FinalizeReplicaUpdate

[arajasek]

Related Issues

I was investigating #9396, and ran into this confusing piece of code. This PR doesn't actually solve 9396, though.

Proposed Changes

State the condition when we want to move unsealed files more clearly.

I'm still a little unsure of this method. We might want to refresh the value of moveUnsealed after we've called into FinalizeReplicaUpdate, since that call might delete the unsealed files. But it should only do that when keepUnsealed == 0, so I guess it's fine.

Additional Info

Checklist

Before you mark the PR ready for review, please make sure that:

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  • example: fix: mempool: Introduce a cache for valid signatures
  • PR type: fix, feat, build, chore, ci, docs, perf, refactor, revert, style, test
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[magik6k]

This looks at least less confusing