lean transform doesn't work

[Hagriel]

Prerequisites

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

Mongoose version

6.4.4

Node.js version

18.5

MongoDB server version

5.0.9

Description

lean transform doesn't work

Steps to Reproduce

this.favoriteList
      .find({ })
      .lean({
        transform: (doc) => {
          delete doc._id;
          return doc;
        }
      });

Expected Behavior

No response

[IslandRhythms]

Can you please show me what you expect the document to look like?

[Hagriel]

@IslandRhythms I expect to see this behavior, but in fact, _id is present

it('allows a transform option for lean on a query gh-10423', async function() {
const testSchema = new mongoose.Schema({
name: String
});
const Test = db.model('gh10423', testSchema);
await Test.create({name: 'foo'});
const result = await Test.findOne().lean({ transform: (doc, ret) => {
delete ret._id;
return ret;
}});
assert.equal(result._id, undefined);
});

[Hagriel]

this example from 0044913