qdata callback not called

[Murray Cumming Comneon com]

I believe that the callback given to g_object_set_qdata_full()
should be called when the GObject is destroyed, but it doesn't seem to work
in this simple test case:
http://bugzilla.gnome.org/showattachment.cgi?attach_id=17788

Have I made a simple mistake in that test code, or am I misunderstanding
something?

We use this in the internals of gtkmm and I'm sure it works most of the
time, so I am confused. We can of course just connect to the "destroy"
signal if we can't get this to work consistently.

Murray Cumming
murrayc usa net
www.murrayc.com