[openbox] Windows in The GIMP behaving badly.

[52midnight]

I've set my ~/.gimp-2.6/gimprc file to this:

   #toolbox-window-hint utility
   #dock-window-hint utility
   toolbox-window-hint normal
   dock-window-hint normal
   transient-docks no

In spite of this, the Xprops for the Gimp windows remain set at "utility".  
I include an Nedit window for comparison; it behaves normally, and doesn't  
have the second parameter set:

   Nedit: _OB_APP_TYPE(UTF8_STRING) = "normal"

   Gimp Tool: _OB_APP_TYPE(UTF8_STRING) = "utility"
   Gimp Tool: _NET_WM_WINDOW_TYPE(ATOM) = _NET_WM_WINDOW_TYPE_UTILITY

   Gimp Layer: _OB_APP_TYPE(UTF8_STRING) = "utility"
   Gimp Layer: _NET_WM_WINDOW_TYPE(ATOM) = _NET_WM_WINDOW_TYPE_UTILITY

   Gimp Working: _OB_APP_TYPE(UTF8_STRING) = "normal"
   Gimp Working: _NET_WM_WINDOW_TYPE(ATOM) = _NET_WM_WINDOW_TYPE_NORMAL

This begins to look like a Gimp problem, but I don't have the street cred  
to go chasing after those guys. Is anyone here prepared to take them on?