Applications in KDE's "Lost & Found" folder

[Steve Snyder]

In my KDE (now at v4.2.0) Application Launcher I've got a half-dozen 
applications in the "Lost & Found" folder.  It seems that these 
applications have at least one other thing in common: they're all in 
the Electronics category.  This list mirrors the apps I see in L&F:

$ grep -l Electronics /usr/share/applications/*.desktop
/usr/share/applications/fedora-geda-gattrib.desktop
/usr/share/applications/fedora-geda-gschem.desktop
/usr/share/applications/fedora-gerbv.desktop
/usr/share/applications/fedora-LabPlot.desktop
/usr/share/applications/fedora-pcb.desktop
/usr/share/applications/fedora-piklab.desktop
/usr/share/applications/fedora-toped.desktop

I don't know is if this is a result of the recent v4.1.x --> v4.2.0 
update or not.  In my experience KDE will occasionally "lose" objects 
in the XML file it uses to track menu items.  Also, (and maybe this is 
a false memory) wasn't there an Engineering folder previously?