revert Owen's change (using a strdupped string as object data), so the

revert Owen's change (using a strdupped string as object data), so the

Sat Jan 12 16:57:31 2002  Kristian Rietveld  <kris@gtk.org>

        * gtk/gtktreeview.c (gtk_tree_view_real_start_interactive_search):
        revert Owen's change (using a strdupped string as object data), so
        the interactive search works again