Thank you all, it helps indeed. I must admit I did not read all documentation pages related to encodings, and I was not aware of these subtle differences between ':utf8' and ':encoding(utf8)' as well as between 'utf8' and 'utf-8'. Now I understand why this difference appears. conclusion: using ':encoding(utf-8)' is safer.

In reply to Re^2: different utf8 method = different behaviour? by erwan
in thread different utf8 method = different behaviour? by erwan

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