Your bug report

#8246: dired-do-create-files didn't even check that there was a file with the same name already there

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

The explanation is attached below, along with your original report.
If you require more details, please reply to 6520@debbugs.gnu.org.

-- 
8246: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=8246
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