modules.policy: REFUSE, TC - clear AD flag in answers

modules/policy/policy.lua

@@ -493,6 +493,7 @@ end
 function policy.REFUSE(_, req)
 	local answer = req.answer
 	answer:rcode(kres.rcode.REFUSED)
+	answer:ad(false)
 	return kres.DONE
 end
 
@@ -500,6 +501,7 @@ function policy.TC(state, req)
 	local answer = req.answer
 	if answer.max_size ~= 65535 then
 		answer:tc(1) -- ^ Only UDP queries
+		answer:ad(false)
 		return kres.DONE
 	else
 		return state