Your bug report

#25684: 25.1; (downcase -1) segfaults Emacs on GNU/Linux

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 25684@debbugs.gnu.org.

-- 
25684: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=25684
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