avoid deadlock in lighthouse queryWorker #1112
Merged
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If the lighthouse queryWorker tries to call StartHandshake on a lighthouse vpnIp, we can deadlock on the handshake_manager lock. This change drops the handshake_manager lock before we send on the lighthouse queryChan (which could block), and also avoids sending to the channel if this is a lighthouse IP itself.
we added this in #996 but removed it in #1044