gtktreeview assertion `has_next' failed

[Willem Riede <wriede riede org>]

From time to time I get this:


(balsa:15321): Gtk-CRITICAL **: file gtktreeview.c: line 3951 (gtk_tree_view_bin_expose): assertion `has_next' failed.
There is a disparity between the internal view of the GtkTreeView,
and the GtkTreeModel.  This generally means that the model has changed
without letting the view know.  Any display from now on is likely to
be incorrect.


and I have to close and re-open the current mailbox since navigating it doesn't work until I do...

Balsa 2.3.8 on FC5T2, x86_64, gtk2-2.8.9-1.1

Any ideas? Thanks, Willem Riede.