[Bug 821951] Re: sort -u erase some utf8 characters

[An Yang]

All of the lost 686 Chinese characters locate in CJK UNIFIED IDEOGRAPH
EXTENSION A block.

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Title:
  sort -u erase some utf8 characters

Status in “eglibc” package in Ubuntu:
  Confirmed

Bug description:
  sort -u will erase some utf8 characters.

  see attachment for detail data.
  sort -u x.sorted.utf8 > x.sorted.uniq.utf8
  diff x.sorted.uniq.utf8 x.sorted.utf8 > x.diff

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