### Godot version

v4.2.dev.custom_build [60f3b7967]

### System information

Debian Linux X11 Xfce

### Issue description

Physics Picking within a `SubViewport` happens with `InputEventMouse` even when mouse events are disabled via `SubViewportContainer.mouse_filter = Control.MOUSE_FILTER_IGNORE`

The problem is that passive hovering still happens in the `SubViewport` with `SubViewportContainer.mouse_filter = Control.MOUSE_FILTER_IGNORE`.

I assume that it is a regression from #78017.

This was initially reported as a side-effect in #79271, which got closed, because the main issue was resolved.



### Steps to reproduce

1. Load and run MRP
2. move mouse over Icon

I would expect, that the `Area2D` receives no `InputEventMouse`, however it gets `_input_event` and also mouse-entered and mouse-exited signals.

### Minimal reproduction project

[IgnorePassiveHover.zip](https://github.com/godotengine/godot/files/12044510/IgnorePassiveHover.zip)

ERR_MAIN_THREAD_GUARD;
	if (p_enable == camera_3d_override) {
		return;
	}
	if (p_enable) {
		camera_3d_override.rid = RenderingServer::get_singleton()->camera_create();
	} else {
		RenderingServer::get_singleton()->free(camera_3d_override.rid);
		camera_3d_override.rid = RID();
	}
	if (p_enable) {
		RenderingServer::get_singleton()->viewport_attach_camera(viewport, camera_3d_override.rid);
	} else if (camera_3d) {
		RenderingServer::get_singleton()->viewport_attach_camera(viewport, camera_3d->get_camera());
	} else {
		RenderingServer::get_singleton()->viewport_attach_camera(viewport, RID());
	}
}
void Viewport::set_camera_3d_override_perspective(real_t p_fovy_degrees, real_t p_z_near, real_t p_z_far) {