### Godot version

v4.0.beta.custom_build [bb08997b8]

### System information

Ubuntu 22.10 LTS, GTX1060, Vulkan

### Issue description

If you toggle emulate_touch_from_mouse option in ProjectSettings `InputEventMouseMotion`, `InputEventScreenDrag`, `InputEventScreenTouch` passes through `Panel`, afaik this doesn't happen in **`3.x branch`**

how tree looks:
```
- Node
  - Panel(half screen size, to stop input events)
  - Node(captures unhandled inputs)

```
screen separated into 2 sides, left side is Panel, right is empty space, so if you click on Panel you can't get any output from _unhandled_input on Node.

### Steps to reproduce

1. run attachment
2. click and/or scroll with mouse on left side and right side (check output)
3. go to project settings and toggle `emulate touch from mouse`
4. go to step 2 (check output)

### Minimal reproduction project

[New Game Project.zip](https://github.com/godotengine/godot/files/10371324/New.Game.Project.zip)

ClassDB::bind_method(D_METHOD("set_size", "size"), &SubViewport::set_size);
	ClassDB::bind_method(D_METHOD("get_size"), &SubViewport::get_size);
	ClassDB::bind_method(D_METHOD("set_size_2d_override", "size"), &SubViewport::set_size_2d_override);
	ClassDB::bind_method(D_METHOD("get_size_2d_override"), &SubViewport::get_size_2d_override);
	ClassDB::bind_method(D_METHOD("set_size_2d_override_stretch", "enable"), &SubViewport::set_size_2d_override_stretch);
	ClassDB::bind_method(D_METHOD("is_size_2d_override_stretch_enabled"), &SubViewport::is_size_2d_override_stretch_enabled);
	ClassDB::bind_method(D_METHOD("set_update_mode", "mode"), &SubViewport::set_update_mode);
	ClassDB::bind_method(D_METHOD("get_update_mode"), &SubViewport::get_update_mode);
	ClassDB::bind_method(D_METHOD("set_clear_mode", "mode"), &SubViewport::set_clear_mode);
	ClassDB::bind_method(D_METHOD("get_clear_mode"), &SubViewport::get_clear_mode);
	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2I, "size", PROPERTY_HINT_NONE, "suffix:px"), "set_size", "get_size");
	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2I, "size_2d_override", PROPERTY_HINT_NONE, "suffix:px"), "set_size_2d_override", "get_size_2d_override");
	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "size_2d_override_stretch"), "set_size_2d_override_stretch", "is_size_2d_override_stretch_enabled");
	ADD_GROUP("Render Target", "render_target_");
	ADD_PROPERTY(PropertyInfo(Variant::INT, "render_target_clear_mode", PROPERTY_HINT_ENUM, "Always,Never,Next Frame"), "set_clear_mode", "get_clear_mode");
	ADD_PROPERTY(PropertyInfo(Variant::INT, "render_target_update_mode", PROPERTY_HINT_ENUM, "Disabled,Once,When Visible,When Parent Visible,Always"), "set_update_mode", "get_update_mode");
	BIND_ENUM_CONSTANT(CLEAR_MODE_ALWAYS);
	BIND_ENUM_CONSTANT(CLEAR_MODE_NEVER);
	BIND_ENUM_CONSTANT(CLEAR_MODE_ONCE);
	BIND_ENUM_CONSTANT(UPDATE_DISABLED);
	BIND_ENUM_CONSTANT(UPDATE_ONCE);
	BIND_ENUM_CONSTANT(UPDATE_WHEN_VISIBLE);
	BIND_ENUM_CONSTANT(UPDATE_WHEN_PARENT_VISIBLE);
	BIND_ENUM_CONSTANT(UPDATE_ALWAYS);
}
SubViewport::SubViewport() {
	RS::get_singleton()->viewport_set_size(get_viewport_rid(), get_size().width, get_size().height);
}
SubViewport::~SubViewport() {}