Document populate type is returning an `ObjectId & PopulatedType`

[JeromeDeLeon]

Prerequisites

• I have written a descriptive issue title
• I have searched existing issues to ensure the bug has not already been reported

Mongoose version

6.3.4

Node.js version

14.18

MongoDB server version

4.5.0

Description

I have an issue with document.populate where it always returns an intersection of objectId & the populated types itself and find it weird that it is not an issue for query.populate but maybe because you use UnpackIntersection.

Steps to Reproduce

TS playground

Expected Behavior

I'm expecting it to return just the populated document type and not to have ObjectId