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This is more expensive for now but it will allow subsequent patches to read relevant state from the reassignment instead of from the global state, which will stop the computation of the reassignment from reading state that is mutated by the same loop. Eventually this lets us completely split the computation from the side effects. The ugly parts of this patch will be cleaned up later as a result, namely in patches [NS B04] and [NS B05]. Test: ConnectivityServiceTest Change-Id: I271e7f4d4bc81493c1ea212025b7130619592a8a