[Bug 1887503] [NEW] "sort" does not perform correctly when locale is en_GB or en_US

[Howard Guo]

Public bug reported:

Create a plain text file with two lines:

a1 12
a 12

Sort it using locale "C", observe the correct result:

env LC_ALL=C sort test.txt
a 12
a1 12

Sort it using other English locales and observe the incorrect result:

env LC_ALL=en_US sort test.txt
a1 12
a 12
env LC_ALL=en_GB sort test.txt
a1 12
a 12

The system has the following locales packages installed:

ii  locales                              2.31-0ubuntu9                       all          GNU C Library: National Language (locale) data [support]
ii  locales-all                          2.31-0ubuntu9                       amd64        GNU C Library: Precompiled locale data

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: coreutils 8.30-3ubuntu2
ProcVersionSignature: Microsoft 4.4.0-18362.836-Microsoft 4.4.35
Uname: Linux 4.4.0-18362-Microsoft x86_64
ApportVersion: 2.20.11-0ubuntu27.3
Architecture: amd64
CasperMD5CheckResult: skip
Date: Tue Jul 14 12:36:53 2020
ProcEnviron:
 LANGUAGE=en_GB.UTF-8
 TERM=tmux-256color
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/usr/bin/fish
SourcePackage: coreutils
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: coreutils (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug focal uec-images

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https://bugs.launchpad.net/bugs/1887503

Title:
  "sort" does not perform correctly when locale is en_GB or en_US

Status in coreutils package in Ubuntu:
  New

Bug description:
  Create a plain text file with two lines:

  a1 12
  a 12

  Sort it using locale "C", observe the correct result:

  env LC_ALL=C sort test.txt
  a 12
  a1 12

  Sort it using other English locales and observe the incorrect result:

  env LC_ALL=en_US sort test.txt
  a1 12
  a 12
  env LC_ALL=en_GB sort test.txt
  a1 12
  a 12

  The system has the following locales packages installed:

  ii  locales                              2.31-0ubuntu9                       all          GNU C Library: National Language (locale) data [support]
  ii  locales-all                          2.31-0ubuntu9                       amd64        GNU C Library: Precompiled locale data

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: coreutils 8.30-3ubuntu2
  ProcVersionSignature: Microsoft 4.4.0-18362.836-Microsoft 4.4.35
  Uname: Linux 4.4.0-18362-Microsoft x86_64
  ApportVersion: 2.20.11-0ubuntu27.3
  Architecture: amd64
  CasperMD5CheckResult: skip
  Date: Tue Jul 14 12:36:53 2020
  ProcEnviron:
   LANGUAGE=en_GB.UTF-8
   TERM=tmux-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/usr/bin/fish
  SourcePackage: coreutils
  UpgradeStatus: No upgrade log present (probably fresh install)

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