### 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)
ClassDB::bind_method(D_METHOD("set_canvas_cull_mask_bit", "layer", "enable"), &Viewport::set_canvas_cull_mask_bit);
	ClassDB::bind_method(D_METHOD("get_canvas_cull_mask_bit", "layer"), &Viewport::get_canvas_cull_mask_bit);
	ClassDB::bind_method(D_METHOD("set_default_canvas_item_texture_repeat", "mode"), &Viewport::set_default_canvas_item_texture_repeat);
	ClassDB::bind_method(D_METHOD("get_default_canvas_item_texture_repeat"), &Viewport::get_default_canvas_item_texture_repeat);
	ClassDB::bind_method(D_METHOD("set_sdf_oversize", "oversize"), &Viewport::set_sdf_oversize);
	ClassDB::bind_method(D_METHOD("get_sdf_oversize"), &Viewport::get_sdf_oversize);
	ClassDB::bind_method(D_METHOD("set_sdf_scale", "scale"), &Viewport::set_sdf_scale);
	ClassDB::bind_method(D_METHOD("get_sdf_scale"), &Viewport::get_sdf_scale);
	ClassDB::bind_method(D_METHOD("set_mesh_lod_threshold", "pixels"), &Viewport::set_mesh_lod_threshold);
	ClassDB::bind_method(D_METHOD("get_mesh_lod_threshold"), &Viewport::get_mesh_lod_threshold);
	ClassDB::bind_method(D_METHOD("_process_picking"), &Viewport::_process_picking);
#ifndef _3D_DISABLED
	ClassDB::bind_method(D_METHOD("set_world_3d", "world_3d"), &Viewport::set_world_3d);
	ClassDB::bind_method(D_METHOD("get_world_3d"), &Viewport::get_world_3d);
	ClassDB::bind_method(D_METHOD("find_world_3d"), &Viewport::find_world_3d);
	ClassDB::bind_method(D_METHOD("set_use_own_world_3d", "enable"), &Viewport::set_use_own_world_3d);
	ClassDB::bind_method(D_METHOD("is_using_own_world_3d"), &Viewport::is_using_own_world_3d);
	ClassDB::bind_method(D_METHOD("get_camera_3d"), &Viewport::get_camera_3d);
	ClassDB::bind_method(D_METHOD("set_as_audio_listener_3d", "enable"), &Viewport::set_as_audio_listener_3d);
	ClassDB::bind_method(D_METHOD("is_audio_listener_3d"), &Viewport::is_audio_listener_3d);
	ClassDB::bind_method(D_METHOD("set_disable_3d", "disable"), &Viewport::set_disable_3d);
	ClassDB::bind_method(D_METHOD("is_3d_disabled"), &Viewport::is_3d_disabled);
	ClassDB::bind_method(D_METHOD("set_use_xr", "use"), &Viewport::set_use_xr);
	ClassDB::bind_method(D_METHOD("is_using_xr"), &Viewport::is_using_xr);
	ClassDB::bind_method(D_METHOD("set_scaling_3d_mode", "scaling_3d_mode"), &Viewport::set_scaling_3d_mode);
	ClassDB::bind_method(D_METHOD("get_scaling_3d_mode"), &Viewport::get_scaling_3d_mode);
	ClassDB::bind_method(D_METHOD("set_scaling_3d_scale", "scale"), &Viewport::set_scaling_3d_scale);
	ClassDB::bind_method(D_METHOD("get_scaling_3d_scale"), &Viewport::get_scaling_3d_scale);
	ClassDB::bind_method(D_METHOD("set_fsr_sharpness", "fsr_sharpness"), &Viewport::set_fsr_sharpness);
	ClassDB::bind_method(D_METHOD("get_fsr_sharpness"), &Viewport::get_fsr_sharpness);