Your bug report

#64164: 29.0.92; buffer-file-coding-system changes unexpectedly after saving

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 64164@debbugs.gnu.org.

-- 
64164: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=64164
GNU Bug Tracking System
Contact help-debbugs@gnu.org with problems