### Godot version

v4.2.rc.custom_build [702227129]

### System information

Godot v4.2.rc (702227129) - Debian GNU/Linux trixie/sid trixie - X11 - Vulkan (Forward+) - dedicated NVIDIA GeForce GTX 1060 6GB (nvidia) - AMD Ryzen 5 1600 Six-Core Processor (12 Threads)

### Issue description

Found a consistent crash when calling `hide()` from `_notification()`.
It does not happen if the call is deferred.

### Steps to reproduce

The `hide_test.gd` script has a boolean `cause_crash`. If it is true, hovering the mouse over the label crashes without an error in the Godot Editor Console. If it's false it hides the label as expected.

### Minimal reproduction project

[hide_crash.zip](https://github.com/godotengine/godot/files/13452818/hide_crash.zip)

ERR_MAIN_THREAD_GUARD;
	if (world_2d == p_world_2d) {
		return;
	}
	if (is_inside_tree()) {
		RenderingServer::get_singleton()->viewport_remove_canvas(viewport, current_canvas);
	}
	if (world_2d.is_valid()) {
		world_2d->remove_viewport(this);
	}
	if (p_world_2d.is_valid()) {
		bool do_propagate = world_2d.is_valid() && is_inside_tree();
		world_2d = p_world_2d;
		if (do_propagate) {
			_propagate_world_2d_changed(this);
		}
	} else {
		WARN_PRINT("Invalid world_2d");
		world_2d = Ref<World2D>(memnew(World2D));
	}
	world_2d->register_viewport(this);
	_update_audio_listener_2d();
	if (is_inside_tree()) {
		current_canvas = find_world_2d()->get_canvas();
		RenderingServer::get_singleton()->viewport_attach_canvas(viewport, current_canvas);
	}
}
Ref<World2D> Viewport::find_world_2d() const {