Your bug report #54943: 13.1.2; \iff messes up indentation in math mode which was filed against the auctex package, has been closed. The explanation is attached below, along with your original report. If you require more details, please reply to 54943@debbugs.gnu.org. -- 54943: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=54943 GNU Bug Tracking System Contact help-debbugs@gnu.org with problems