Your bug report

#26609: 26.0.50; Opening Mercurial-controlled file causes void function error

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 26609@debbugs.gnu.org.

-- 
26609: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=26609
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