Test fix for crash

source/ubl-settings-usergroups.c

@@ -1102,7 +1102,7 @@ void on_settings_usergroups_system_open(GtkWidget *self, main_window *widgets){
 
 void on_user_shell_changed(GtkWidget *self, ubl_settings_usergroups_user_window *window){
 	const char *current = gtk_combo_box_text_get_active_text(GTK_COMBO_BOX_TEXT(window->userShellCombo));
-	if (!strcmp(current,SET_LABEL)){
+	if (!yon_char_is_empty(current)&&!strcmp(current,SET_LABEL)){
 		if(gtk_combo_box_get_active(GTK_COMBO_BOX(window->userShellCombo))>1){
 			gtk_widget_set_sensitive(window->userShellEntry,1);
 		} else {