[Bug 75159] all panel objects of type != launcher disappeared after drag&drop

[^rooker]

Public bug reported:

After dragging an icon from the applications menu onto an icon in an
open drawer, an errormessage containing something like "expected an int"
appeared - and then all entries in "~/.gconf/apps/panel/objects" that
were NOT of type "launcher-object" disappeared. Permanently (still gone
after reboot)

All other, related entries (toplevels, applets, ...) stayed.

This was severe, because menu-bar and the logout-applet were gone -
Luckily, the menu was still accessible using keyboard shortcut.

Although I was able to pinpoint its exact effects, I am unable to
reproduce it.

------------------------------------
Here is what I did when it happened (reproduction did NOT cause this error to re-appear):

1) Had a drawer on the top panel with 4 icons in it. 3 application-launchers and 1 URL link.
2) I wanted to add an item from the applications-menu to this drawer
3) ...and accidentially dropped it onto the URL link icon in the drawer.
4) a small grey box with the above errormessage popped up.
5) panel-objects disappeared as described above.

** Affects: gnome-panel (Ubuntu)
     Importance: Undecided
         Status: Unconfirmed

** Description changed:

  After dragging an icon from the applications menu onto an icon in an
  open drawer, an errormessage containing something like "expected an int"
  appeared - and then all entries in "~/.gconf/apps/panel/objects" that
  were NOT of type "launcher-object" disappeared. Permanently (still gone
  after reboot)
  
  All other, related entries (toplevels, applets, ...) stayed.
  
  This was severe, because menu-bar and the logout-applet were gone -
  Luckily, the menu was still accessible using keyboard shortcut.
+ 
+ Although I was able to pinpoint its exact effects, I am unable to
+ reproduce it.
+ 
+ ------------------------------------
+ Here is what I did when it happened (reproduction did NOT cause this error to re-appear):
+ 
+ 1) Had a drawer on the top panel with 4 icons in it. 3 application-launchers and 1 URL link.
+ 2) I wanted to add an item from the applications-menu to this drawer
+ 3) ...and accidentially dropped it onto the URL link icon in the drawer.
+ 4) a small grey box with the above errormessage popped up.
+ 5) panel-objects disappeared as described above.

-- 
all panel objects of type != launcher disappeared after drag&drop
https://launchpad.net/bugs/75159