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There was a bug with the lazy wireguard config code where, if the minimum set of peers to tell wireguard didn't change, we skipped calling userspaceEngine.updateActivityMapsLocked which updated the various data structures that matched incoming traffic to later reconfigure the minimum config. That meant if an idle peer restarted and changed discovery keys, we skipped updating our maps of disco keys/IPs that would caused us to lazily inflate the config for that peer later if/when it did send traffic.