Your bug report

#15945: chown: Does now allow setting user and users login group with numerical user ID

which was filed against the coreutils package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 15945@debbugs.gnu.org.

-- 
15945: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=15945
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