Crash fixes

source/ubinstall-gtk-packages.c

@@ -119,7 +119,7 @@ void yon_packages_tab_init(main_window *widgets){
 void yon_on_packages_selected(GtkWidget *, main_window *widgets){
     GtkTreeIter iter;
     GtkTreeModel *model;
-    gtk_tree_selection_get_selected(gtk_tree_view_get_selection(GTK_TREE_VIEW(widgets->PackagesTree)),&model,&iter);
+    if (!gtk_tree_selection_get_selected(gtk_tree_view_get_selection(GTK_TREE_VIEW(widgets->PackagesTree)),&model,&iter)) return;
     GtkTreeIter cur_parent, cur_iter;
     int status;
     gtk_tree_model_get(model,&iter,3,&status,-1);