I don't recall actual KDE4 apps doing this, but I'm not certain. Off the
top of my head Easytag, XQF Game Server, and several KDevelop icons did
this.
You can see this for yourself by going through my steps. You can back
up your ~/.config/menus/ folder, then you can restore it after your
done
Logging in and out doesn't seem to make a difference, the problem
happens immediately. (Edit all the icons, and then look at your menu).
There is no pattern that I can find, however even though it happens with
both GTK and QT apps, it happens most often with GTK apps. That may be
just a coincid