gEDA-dev: assertion failed in compselect window

[Carlos Nieves Ónega]

Hi,
while testing the last changes to the compselect window, I got the
following error message: 

(gschem:5447): Gtk-CRITICAL **: gtk_tree_model_row_has_child_toggled:
assertion `path != NULL' failed

This function is never used in gschem code, so it should be a call by
another gtk function. It happens whenever the user types something in
the filter entry, and the results of the search is empty.

Test case: open the compselect window, go to the library tab and type
"ddd" in the filter entry. 

It seems it only happens when lib_model_filter_visible_func returns
FALSE. If that function is modified so it always returns TRUE (but
keeping all other code), I never got such error.

I think it didn't happened before. Any ideas?

Carlos