da920fe176
Previously all queries to the reverse mapping domains (in-addr.arpa and ip6.arpa) were considered to be in-scope for mdns and llmnr at the same priority as DNS. This caused sd-resolved to ignore NXDOMAIN responses from dns in favor of lengthy timeouts. This narrows the scope of mdns and llmnr so they are not invariably considered as fallbacks for these domains. Now, mdns/llmnr on a link will only be used as a fallback when there is no suitable DNS scope, and when that link is DefaultRoute.
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