Your bug report

#27266: [macOS] Crash using IDO, at C-x C-f

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 27266@debbugs.gnu.org.

-- 
27266: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=27266
GNU Bug Tracking System
Contact help-debbugs@gnu.org with problems