Version: CVS (using KDE KDE 3.1) Installed from: RedHat RPMs There is an off by one error in the undo code but I can't nail it down. Sometimes when I undo the first character of the undone text is lost. Sometimes it is the last. It seems to be related to pasting code from outside the kdevelop environment. Sometimes I notice white space problems with pasting external code. The undo problems seem coorelated to the white space problems. Could be a problem in CRLF processing with pasted code. The bug is probably related to underlying structures that aren't visible to a user. If I can figure out how to reproduce I will add onto this report.
QEditor has been removed for KDevelop 4 and none of these bugs will be fixed between now and then.