fix hosts

[wzv5]

When hosts exist but query type do not match, an empty result should be returned.

[codecov]

Codecov Report

Merging #240 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #240   +/-   ##
=======================================
  Coverage   49.84%   49.84%           
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  Files          13       13           
  Lines         660      660           
=======================================
  Hits          329      329           
  Misses        283      283           
  Partials       48       48           

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[shawn1m]

I think your method might be one of the hosts matching strategies so providing an option is preferred for the needs of various users.

[wzv5]

But as you can see, all systems behave like this. I don't think it needs an option.

[shawn1m]

I don't have IPv6 testing environment for now and I will appreciate it that you could find an example and verify it for me if possible.
Thanks a lot!

[wzv5]

https://github.com/coredns/coredns/blob/9230e1772bc24faddd94a3dc9be7fe52a4d29e83/plugin/hosts/hosts.go#L56-L64

[shawn1m]

Understood. Making overture work like coredns is acceptable.
Merged. Thanks!