The testcase attached fails with LC_ALL set to C, but works correctly with a
Created attachment 127402 [details]
Created attachment 127403 [details]
Created attachment 127404 [details]
Bug spotted by Tim Waugh <email@example.com>
This bug was fix in coreutils-4.5.3-28.4 which was released as an asynchronous
RHBA errata advisory.