Fixed issue with lookup

nodejs/services/host_lookup.js

@@ -35,6 +35,14 @@ const socket = new SocketServerJson({
 			// If we don't have a match, return empty object
 			if(!parentHost) return clientSocket.write(JSON.stringify({}));
 
+			// lookUp returns the live #record object stored inside the shared
+			// lookup tree. Everything below mutates parentHost (sets
+			// wildcard_parent, stringifies every value), so work on a shallow
+			// copy — mutating the shared node would corrupt the tree, e.g. turn
+			// wildcard_matchAny into the string "false" (truthy) and break the
+			// matchAny guard on subsequent lookups.
+			parentHost = {...parentHost};
+
 			// A wildcard host with matchAny disabled only serves subdomains that
 			// are explicitly defined in redis. Reaching this service means redis
 			// had no direct entry for the requested domain, so an inexact match