### 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)

switch (p_what) {
		case NOTIFICATION_DRAW: {
			Size2 grid_size = get_grid_size();
			grid_size.x = get_size().x;
			flag_rects.clear();
			int prev_expansion_rows = expansion_rows;
			expansion_rows = 0;
			const int bsize = (grid_size.height * 80 / 100) / 2;
			const int h = bsize * 2 + 1;
			Color color = get_theme_color(read_only ? SNAME("disabled_highlight_color") : SNAME("highlight_color"), SNAME("Editor"));
			Color text_color = get_theme_color(read_only ? SNAME("disabled_font_color") : SNAME("font_color"), SNAME("Editor"));
			text_color.a *= 0.5;