Usage of arrayfilters with discriminator : no element updated

[BTpro]

Prerequisites

• I have written a descriptive issue title

Mongoose version

6.3.1

Node.js version

16.13.1

MongoDB version

5.0.9

Operating system

Windows

Operating system version (i.e. 20.04, 11.3, 10)

10

Issue

Hi to everyone,

I have a problem with the filters of discriminators. I have read issues which looked like mine #9977 and tested several solutions but it is not working.

I want to push an element in an array property of discriminator and for that I need to filter with his type (the discriminator key) and his number.

Despite my tests, my new object is never added to my parent object.

Please find below the example I use:
VersionSchema contains an Array of object which are using discriminatorKey

My test model for a diagram :

const elementSchema = new Schema(
  {
    elementType: {
      type: String,
      required: true,
    },
  },
  {
    discriminatorKey: "elementType",
    timestamps: true,
  }
);

const versionSchema = new Schema(
  {
    elements: [elementSchema],
  },
  {
    timestamps: true,
  }
);

versionSchema.path("elements").discriminator(
  "Graph",
  new Schema(
    {
      number: {
        type: String,
        required: true,
      },
      curves: [curveSchema],
    },
    {
      timestamps: true,
    }
  )
);

Hereafter my test service to push a new item in my Array of elements using the discriminator (I cleaned the code, so I might not be accurate concerning the brackets). The aim here is to push a new subelement of an existing element in the array of the parent element. I need to use an array filter ($and) to find the element using the discriminator and to find the element with a specific number inside. Looks like the results get no answer for the update. I manually check, and the is one candidate for the update. What am I doing wrong here ?

  test.findOneAndUpdate(
    {
      label: "diag01",
    },
    {
      $push: {
        "versions.$[version].elements.$[element].curves": {
          line: {
            label: "CC110_Ligne 02",
            type: "numerique",
            number: "30",
            latLong: [44, 8],
            controller: "CC110",
          },
        },
      },
    },
    {
      new: true,
      arrayFilters: [
        { "version.version": "1.0" },
        {
          $and: [{ "element.number": "1" }, { "element.elementType": "Graph" }],
        },
      ],
    },
    }
  );
}