### Godot version

v4.0.beta17.official [c40020513]

### System information

macOS 13.0.1

### Issue description

When a `Control` node is over a `SubViewportContainer` (with a `SubViewport` as a child), both in Full Rect anchors, asking for the get_viewport().get_mouse_position() from a scene inside the `SubViewport` returns (0, 0) as the position of the mouse.

This wasn't happening in at least Beta 15. I was getting the mouse position without any problems before Beta 17. I didn't try Beta 16.

### Steps to reproduce

1. Create a `Control` node
2. Add two children: A `SubViewportContainer` and a `Control` node
3. Put both in Full Rect anchors so the `Control` node (child) is covering the `SubViewportContainer`
4. Ask for the get_viewport().get_mouse_position() from inside a scene of the `SubViewport`

As you can see in this screenshot: asking for the mouse position from inside the `Node2D` script always returns (0, 0).

<img width="1533" alt="SubViewportContainerIssue" src="https://user-images.githubusercontent.com/91340577/217051768-d9c2e8ad-40ca-4c6d-bb98-f6a7c9c6081f.png">

Only If the `Control` (child) mouse filtering is set to _Ignore_ you can get the mouse position. But with that you are losing the mouse inputs from that `Control` node.

You can find the setup of these nodes in the MRP.


### Minimal reproduction project

Run the main scene (control.tscn) and move the mouse around the screen. Look for the print in the Output tab.

[SubViewportMousePositionIssue.zip](https://github.com/godotengine/godot/files/10667894/SubViewportMousePositionIssue.zip)
}
		if (size_limit.x > max_size.x) {
			size_limit.x = max_size.x;
			reset_min_first = true;
		}
		if (size.y > max_size.y) {
			size.y = max_size.y;
		}
		if (size_limit.y > max_size.y) {
			size_limit.y = max_size.y;
			reset_min_first = true;
		}
	}
	if (embedder) {
		size.x = MAX(size.x, 1);
		size.y = MAX(size.y, 1);
		embedder->_sub_window_update(this);
	} else if (window_id != DisplayServer::INVALID_WINDOW_ID) {
		if (reset_min_first && wrap_controls) {
			
			DisplayServer::get_singleton()->window_set_min_size(Size2i(), window_id);
		}
		DisplayServer::get_singleton()->window_set_max_size(max_size_valid ? max_size : Size2i(), window_id);
		DisplayServer::get_singleton()->window_set_min_size(size_limit, window_id);
		DisplayServer::get_singleton()->window_set_size(size, window_id);
	}
	
	_update_viewport_size();
}
void Window::_update_viewport_size() {