I have a feeling that Dumper shouldn’t actually produce ambiguous output, so escaped something is what we should expect from it.

That's why the following should be the default: 

local $Data::Dumper::Useqq = 1;

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In reply to Re^3: JSON, Data::Dumper and accented chars in utf-8 by ikegami
in thread JSON, Data::Dumper and accented chars in utf-8 by silentius

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