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<?php var_dump(mb_detect_encoding(iconv('ISO-8859-1', 'UTF-8//IGNORE', 'åäö')));
Output for git.master, git.master_jit, rfc.property-hooks
Warning: iconv(): Wrong encoding, conversion from "ISO-8859-1" to "UTF-8//IGNORE" is not allowed in /in/auM7m on line 3 string(5) "ASCII"

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