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From: | Gregory Heytings |
Subject: | bug#61514: 30.0.50; sadistically long xml line hangs emacs |
Date: | Tue, 14 Feb 2023 22:05:17 +0000 |
Thanks for your bug report, and for the detailed recipe!
Bottom line: Emacs 30 is handling files with long lines worse than Emacs 28.
You jump to a conclusion a bit too fast. It's not a bug in Emacs in general, it's a bug in nXML, and specifically in its fontification routines. Try the same recipe, but with fontification turned off:
emacs -Q M-x global-font-lock-mode C-x C-f a.xmland you'll see that Emacs opens that file just fine, and that you can edit it normally.
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