### Godot version

4.0.dev(dc3175e4cdb4e54e1c6200b6c4d07646eea95284)

### System information

Any

### Issue description

EditorPlugins that depend on the resources that Node has will not be visible when SubInspector is focused.

https://user-images.githubusercontent.com/61938263/210553656-86669f57-e41f-427e-a650-30630c27d850.mp4

This is caused by two problems:

The first is caused by implicit editor deletion in Node3D. This is fixed by #70907.

The other is due to a change in inspector update timing, which is regression by #68498. Revert PR #70909 will fix this issue, but if not, we will need to update SubInspectorEditor in the correct way.

### Steps to reproduce

Select Path3D or CollisionPolygon3D and open a SubInspector such as Script.

### Minimal reproduction project

[plugintest.zip](https://github.com/godotengine/godot/files/10343962/plugintest.zip)

ae.panel = memnew(PanelContainer);
		ae.panel->set_focus_mode(FOCUS_ALL);
		ae.panel->set_mouse_filter(MOUSE_FILTER_PASS);
		ae.panel->set_drag_forwarding(this);
		ae.panel->set_meta("index", begin_array_index + i);
		ae.panel->set_tooltip_text(vformat(TTR("Element %d: %s%d*"), i, array_element_prefix, i));
		ae.panel->connect("focus_entered", callable_mp((CanvasItem *)ae.panel, &PanelContainer::queue_redraw));
		ae.panel->connect("focus_exited", callable_mp((CanvasItem *)ae.panel, &PanelContainer::queue_redraw));
		ae.panel->connect("draw", callable_mp(this, &EditorInspectorArray::_panel_draw).bind(i));
		ae.panel->connect("gui_input", callable_mp(this, &EditorInspectorArray::_panel_gui_input).bind(i));
		ae.panel->add_theme_style_override(SNAME("panel"), i % 2 ? odd_style : even_style);
		elements_vbox->add_child(ae.panel);
		ae.margin = memnew(MarginContainer);
		ae.margin->set_mouse_filter(MOUSE_FILTER_PASS);
		if (is_inside_tree()) {
			Size2 min_size = get_theme_stylebox(SNAME("Focus"), SNAME("EditorStyles"))->get_minimum_size();
			ae.margin->add_theme_constant_override("margin_left", min_size.x / 2);
			ae.margin->add_theme_constant_override("margin_top", min_size.y / 2);
			ae.margin->add_theme_constant_override("margin_right", min_size.x / 2);
			ae.margin->add_theme_constant_override("margin_bottom", min_size.y / 2);
		}
		ae.panel->add_child(ae.margin);
		ae.hbox = memnew(HBoxContainer);
		ae.hbox->set_h_size_flags(SIZE_EXPAND_FILL);
		ae.hbox->set_v_size_flags(SIZE_EXPAND_FILL);
		ae.margin->add_child(ae.hbox);
		
		if (movable) {
			ae.move_texture_rect = memnew(TextureRect);
			ae.move_texture_rect->set_stretch_mode(TextureRect::STRETCH_KEEP_CENTERED);