Version: (using Devel) OS: Linux Installed from: Compiled sources For my work on an KDE html parser, I am at the moment editing a file that I got from downloading http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=CELEX:32002L0021:SV:HTML. The file contains more than 80 000 columns. kwrite gets remarkably slow when deleting a character (using backspace or delete) in the file.
Here using: Qt: 4.4.3 KDE: 4.1.85 (KDE 4.1.85 (KDE 4.2 Beta2)) kdelibs svn rev. 896338 / kdebase svn rev. 896338 (yesterday build) I can confirm the bug. Also if you press "Backspace" without releasing it, KWrite CPU usage goes to 100% and there's a noticiable delay , before removing the columns in the text.
*** This bug has been marked as a duplicate of bug 169549 ***