cancel installation fix

source/ubinstall-gtk-page-switch.c

@@ -420,7 +420,6 @@ void on_page_prev_clicked(GtkWidget *, main_window *widgets){
 }
 
 void on_page_cancel_clicked(GtkWidget *, main_window *widgets){
-    gtk_notebook_set_current_page(GTK_NOTEBOOK(widgets->Notebook),YON_PAGE_WELCOME);
     gtk_widget_hide(widgets->BackButton);
     gtk_widget_hide(widgets->SourceButton);
     gtk_widget_hide(widgets->SkipInstallationButton);
@@ -438,6 +437,7 @@ void on_page_cancel_clicked(GtkWidget *, main_window *widgets){
         data->title=WARNING_TITLE_LABEL;
         if (yon_confirmation_dialog_call(widgets->MainWindow,data)==GTK_RESPONSE_ACCEPT ){
             if (main_config.install_thread){
+                gtk_notebook_set_current_page(GTK_NOTEBOOK(widgets->Notebook),YON_PAGE_WELCOME);
                 gtk_widget_hide(gtk_widget_get_parent(widgets->InstallationProgress));
                 gtk_widget_hide(gtk_widget_get_parent(widgets->PackageInstallationProgress));
                 pthread_cancel((pthread_t)main_config.install_thread);