{
FileData *fd;
gtk_tree_model_get(model, iter, FILE_COLUMN_POINTER, &fd, -1);
+
+ /* it seems that gtk_tree_store_clear may call some callbacks
+ that use the column. Set the pointer to NULL to be safe. */
+ gtk_tree_store_set(GTK_TREE_STORE(model), iter, FILE_COLUMN_POINTER, NULL, -1);
file_data_unref(fd);
return FALSE;
}