Your bug report

#15650: "cp: warning: source file ‘f’ specified more than once" said more than once too!

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 15650@debbugs.gnu.org.

-- 
15650: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=15650
GNU Bug Tracking System
Contact help-debbugs@gnu.org with problems