File prevent-session-restore.patch of Package krename

diff -ur a/src/main.cpp b/src/main.cpp
--- a/src/main.cpp	2020-10-05 17:39:51.000000000 +0300
+++ b/src/main.cpp	2020-12-18 12:36:03.829753622 +0300
@@ -48,6 +48,9 @@
 
 int main(int argc, char *argv[])
 {
+   // Avoid getting started by the session manager
+    qunsetenv("SESSION_MANAGER");
+
     QApplication app(argc, argv);
     app.setAttribute(Qt::AA_UseHighDpiPixmaps, true);
     KLocalizedString::setApplicationDomain("krename");