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Nested object

See original GitHub issue

I have a schema like this:

new Schema({
    waitingList: {
        __type__: {
            current: {
                __type__: [{
                    date: {
                        __type__: Date
                    },
                    user: {
                        __type__: ObjectId,
                        ref: "User"
                    },
                }]
            },
            history: {
                __type__: [{
                    date: {
                        __type__: Date
                    },
                    user: {
                        __type__: ObjectId,
                        ref: "User"
                    },
                }]
            }
        }
    },
}, {
    autoIndex: true,
    typeKey: "__type__"
});

So, in essence a sample document looks like this:

{
  waitingList: {
    current: [],
    history: [{date: someDate, user: myUser}],
  }
}

In that case I want to deep populate user, but if I specify the path as "waitingList.history.user". The plugin crashes with error TypeError: Cannot read property 'paths' of undefined at this position: https://github.com/buunguyen/mongoose-deep-populate/blob/0080a0949fef38bcb9541b267a55810c14c78d4c/lib/plugin.js#L260

For some funny reason I am restricted from declaring sub-schema for those embeded documents. It is possible to make it work in such case?