Fix 'Add Node...' menu entries in AnimationNodeBlendTreeEditor

editor/plugins/animation_blend_tree_editor_plugin.cpp

@@ -969,7 +969,7 @@ AnimationNodeBlendTreeEditor::AnimationNodeBlendTreeEditor() {
 	add_node->set_text(TTR("Add Node..."));
 	graph->get_zoom_hbox()->move_child(add_node, 0);
 	add_node->get_popup()->connect("id_pressed", this, "_add_node");
-	add_node->connect("about_to_show", this, "_update_options_menu");
+	add_node->connect("about_to_show", this, "_update_options_menu", varray(false));
 
 	add_options.push_back(AddOption("Animation", "AnimationNodeAnimation"));
 	add_options.push_back(AddOption("OneShot", "AnimationNodeOneShot", 2));