### Godot version

4.0 d93b66a

### System information

Windows 10 x64

### Issue description

I have a 2D scene with some 3D nodes. The root is node 2D, most nodes are 2D, I have 2D node selected. When I switch scene tab and back, the editor switches to 3D view, even though the 2D node is still selected.

I managed to strip the scene to bare minimum. You need a Node3D with Camera3D and DirectionalLight3D children.

https://user-images.githubusercontent.com/2223172/213327465-ba07760e-6dab-43c0-96e8-5109fcc0a576.mp4


### Steps to reproduce

1. Make 2D scene
2. Add some 3D
3. This bug has a chance to happen
4. Check the repro for setup that reproduces the issue

### Minimal reproduction project

[3DBug.tscn.txt](https://github.com/godotengine/godot/files/10452297/3DBug.tscn.txt)

if (waiting_for_first_scan) {
		waiting_for_first_scan = false;
		Engine::get_singleton()->startup_benchmark_end_measure(); 
		
		
		RenderingServer::get_singleton()->global_shader_parameters_load_settings(true);
		
		if (!singleton->cmdline_export_mode) {
			EditorResourcePreview::get_singleton()->start();
		}
		_load_docks();
		if (!defer_load_scene.is_empty()) {
			Engine::get_singleton()->startup_benchmark_begin_measure("editor_load_scene");
			load_scene(defer_load_scene);
			defer_load_scene = "";
			Engine::get_singleton()->startup_benchmark_end_measure();
			if (use_startup_benchmark) {
				Engine::get_singleton()->startup_dump(startup_benchmark_file);
				startup_benchmark_file = String();
				use_startup_benchmark = false;
			}
		}
	}
}
void EditorNode::_scan_external_changes() {