On Fri, 02 Feb 2024 17:52:48 +0200 Eli Zaretskii wrote: > merge 68893 67791 > thanks > >> Date: Fri, 02 Feb 2024 16:33:00 +0100 >> From: Stephen Berman via "Bug reports for GNU Emacs, >> the Swiss army knife of text editors" >> >> When I type `t' (gnus-summary-toggle-header) on many (but not all) >> articles in the Gnus Summary buffer, I get an error in pixel-fill-region >> that the indentation is wider than the fill width. I can reproduce the >> error as follows: >> >> 0. emacs -Q >> 1. Enable debug-on-error. >> 2. M-x gnus, type `y' at the prompt, then type `B RET news.gmane.io >> RET', then `C-s emacs.bugs RET RET 1 RET' to enter the Gnus Summary >> buffer showing the latest article in the gnu.emacs.bugs group. Then >> type `j' and at the prompt paste the following Message-ID (of an >> article that reliably induces the error) into the minibuffer: >> >> 3. Type `t'. This raises an error and produces the following backtrace: > > This is another duplicate of bug#67791. Please see there for the > analysis and the proposed solutions. Ah, I actually had seen that report and also the recent other one that you merged with it, but unfortunately I didn't remember them when I encountered the issue myself today. Thanks for the pointer. And indeed, not only does Katsumi Yamaoka's patch to gnus-article-treat-fold-headers fix the problem for me too, but also your suggestion to apply the fix to pixel-fill-region instead, as in the following patch, works just as well: