https://bugzilla.redhat.com/show_bug.cgi?id=1670078
--- Comment #5 from Mike FABIAN mfabian@redhat.com --- It looks to me that this does not come from langtable. Because:
$ grep -B 4 "Norwegian Nynorsk; Nynorsk, Norwegian" /usr/share/xml/iso-codes/* /usr/share/xml/iso-codes/iso_639-2.xml- <iso_639_entry /usr/share/xml/iso-codes/iso_639-2.xml- iso_639_2B_code="nno" /usr/share/xml/iso-codes/iso_639-2.xml- iso_639_2T_code="nno" /usr/share/xml/iso-codes/iso_639-2.xml- iso_639_1_code="nn" /usr/share/xml/iso-codes/iso_639-2.xml: name="Norwegian Nynorsk; Nynorsk, Norwegian" /> -- /usr/share/xml/iso-codes/iso_639.xml- <iso_639_entry /usr/share/xml/iso-codes/iso_639.xml- iso_639_2B_code="nno" /usr/share/xml/iso-codes/iso_639.xml- iso_639_2T_code="nno" /usr/share/xml/iso-codes/iso_639.xml- iso_639_1_code="nn" /usr/share/xml/iso-codes/iso_639.xml: name="Norwegian Nynorsk; Nynorsk, Norwegian" />
I.e. the exact string "Norwegian Nynorsk; Nynorsk, Norwegian" which is seen in your screenshot happens to be in /usr/share/xml/iso-codes/iso_639.xml.
But I cannot find that string in the langtable data. langtable does have "Norwegian Nynorsk" as the English name for the language id “nn”:
<language> <languageId>nn</languageId> <iso639-1>nn</iso639-1> <iso639-2-t>nno</iso639-2-t> <iso639-2-b>nno</iso639-2-b> <names> ... <name><languageId>en</languageId><trName>Norwegian Nynorsk</trName></name>
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