Your bug report #43297: 27.1; corrupts patch when diff-update-on-the-fly is set to nil 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 43297@debbugs.gnu.org. -- 43297: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=43297 GNU Bug Tracking System Contact help-debbugs@gnu.org with problems