take into account that a path from a rowref can be NULL. (#72623 and

take into account that a path from a rowref can be NULL. (#72623 and

Tue Feb 26 19:47:16 2002  Kristian Rietveld  <kris@gtk.org>

        * gtk/gtktreeview.c (validate_visible_area): take into account
        that a path from a rowref can be NULL. (#72623 and #72650)

        * gtk/gtktreeviewcolumn.c (gtk_tree_view_column_cell_render_or_focus):
        let focus_rectangle be the same as cell_area for empty cells (#69900)