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Michał Kępień authored
Certain characters, like symbols, are allowed by IDNA2003, but not by IDNA2008. Make dig reject such symbols when IDN input processing is enabled to ensure BIND only supports IDNA2008. Update the "idna" system test so that it uses one of such symbols rather than one which is disallowed by both IDNA2003 and IDNA2008.
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