[education/rkward] rkward: Experimental fix for crash with KF 6.28.0

[Thomas Friedrichsmeier]

Git commit b53a1ac7964a847833de5cfd0719ca7fe8bf3c5b by Thomas Friedrichsmeier.
Committed on 24/08/2026 at 20:48.
Pushed by tfry into branch 'master'.

Experimental fix for crash with KF 6.28.0

Suspected cause is replacing an invalid range.

CCBUG: 524219

M  +3    -1    rkward/rkconsole.cpp

https://invent.kde.org/education/rkward/-/commit/b53a1ac7964a847833de5cfd0719ca7fe8bf3c5b

diff --git a/rkward/rkconsole.cpp b/rkward/rkconsole.cpp
index cdd0ce15f..1aa0c1094 100644
--- a/rkward/rkconsole.cpp
+++ b/rkward/rkconsole.cpp
@@ -405,7 +405,9 @@ void RKConsole::setCurrentEditingLine(const QString &command) {
 	RK_TRACE(APP);
 
 	int lastline = doc->lines() - 1;
-	doc->replaceText(KTextEditor::Range(lastline, prefix.length(), lastline, doc->lineLength(lastline)), command);
+	const auto line = u'\n' + doc->line(lastline).left(prefix.length()) + command;
+	doc->removeLine(lastline);
+	doc->insertText(doc->documentEnd(), line);
 	cursorAtTheEnd();
 }