Your bug report

#18140: [PATCH] macros.c: CHECK_VECTOR_OR_STRING invokes wrong_type_argument for Qnil instead of return 0

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 18140@debbugs.gnu.org.

-- 
18140: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=18140
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