Your bug report #56397: 28.1; Incorrect behavior of buffer-modified-p after undo in indirect buffer 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 56397@debbugs.gnu.org. -- 56397: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=56397 GNU Bug Tracking System Contact help-debbugs@gnu.org with problems