### Godot version

v4.0.beta9.official [e780dc332]

### System information

macOS Ventura 13.0.1 (Intel), Radeon Pro 580 8 GB

### Issue description

When setting the size of a SubViewport (that is inside the corresponding SubViewportContainer) to zero, the editor crashes instantly.

**But it only happens when I set the size of the SubViewport by sliding the values.**

You can see what happens in this video:


https://user-images.githubusercontent.com/91340577/209363880-503d3dff-80e1-4e9e-bb57-d059fdbfeed0.mp4

At the end of the video you can see the crash message of macOS reading: _Godot quit unexpectedly._

If I write the number zero (or any negative) to the values of the SubViewport size, the crash doesn't happens.

### Steps to reproduce

1. Add a SubViewportContainer
2. Add a SubViewport as a child of the SubViewportContainer
3. Set the size of the SubViewport to zero **by sliding** the X or the Y value.

### Minimal reproduction project

1. Open the project
2. Go to the Control.tscn scene
3. Select the SubViewport node
4. Slide the X or Y values of the size to zero

[SubViewportCrash.zip](https://github.com/godotengine/godot/files/10296101/SubViewportCrash.zip)
} else {
		vr = window->get_usable_parent_rect();
	}
	if (r.size.x + r.position.x > vr.size.x + vr.position.x) {
		
		r.position.x = gui.tooltip_pos.x - r.size.x - tooltip_offset.x;
		if (r.position.x < vr.position.x) {
			r.position.x = vr.position.x + vr.size.x - r.size.x;
		}
	} else if (r.position.x < vr.position.x) {
		r.position.x = vr.position.x;
	}
	if (r.size.y + r.position.y > vr.size.y + vr.position.y) {
		
		r.position.y = gui.tooltip_pos.y - r.size.y - tooltip_offset.y;
		if (r.position.y < vr.position.y) {
			r.position.y = vr.position.y + vr.size.y - r.size.y;
		}
	} else if (r.position.y < vr.position.y) {
		r.position.y = vr.position.y;
	}
	gui.tooltip_popup->set_position(r.position);
	gui.tooltip_popup->set_size(r.size);
	DisplayServer::WindowID active_popup = DisplayServer::get_singleton()->window_get_active_popup();
	if (active_popup == DisplayServer::INVALID_WINDOW_ID || active_popup == window->get_window_id()) {
		gui.tooltip_popup->show();
	}
	gui.tooltip_popup->child_controls_changed();
}
bool Viewport::_gui_call_input(Control *p_control, const Ref<InputEvent> &p_input) {