mongoose: Array Filters broken 5.4.4

Mongoose: 5.4.4 NodeJS: LTS MongoDB: 4

UpdateMany fails when filter is in nested array

const m = {
  arr: [
    {
      id: String,
      nestedArr: [
        {
          nestedId: String,
          code: Boolean
        }
      ]
    }
  ]
};

const o = {
  _id: '0'
  arr: [
    {
      id: '1',
      nestedArr: [
        {
          nestedId: '2',
          code: false
        }
      ]
    }
  ]
};

const q = {
  _id: '0'
}

const p = {
  'arr.$[arr].nestedArr.$[nArr].code': true
}

const opts = {
  arrayFilters: [
    {
      'arr.nestedArr.nestedId': '2'
    }, {
      'nArr.nestedId': '2'
    }
  ]
}

Model.updateMany(q, p, opts)

TypeError: Cannot read property 'castForQuery' of undefined
    at castArrayFilters (/Users/dbayo/data-model/node_modules/mongoose/lib/helpers/update/castArrayFilters.js:60:37)
    at _castArrayFilters (/Users/dbayo/data-model/node_modules/mongoose/lib/query.js:1736:5)
    at model.Query._updateThunk (/Users/dbayo/data-model/node_modules/mongoose/lib/query.js:3449:3)
    at model.Query.<anonymous> (/Users/dbayo/data-model/node_modules/mongoose/lib/query.js:3546:23)
    at model.Query._wrappedThunk [as _updateMany] (/Users/dbayo/data-model/node_modules/mongoose/lib/helpers/query/wrapThunk.js:16:8)
    at /Users/dbayo/data-model/node_modules/kareem/index.js:278:20
    at _next (/Users/dbayo/data-model/node_modules/kareem/index.js:102:16)
    at process.nextTick (/Users/dbayo/data-model/node_modules/kareem/index.js:499:38)

On the other hand, could you explain me what is the purpose of that file? lib/helpers/update/castArrayFilters.js

I don’t understand why filter path becomes to arr.0.nestedArr.code, because filter is only applying to first element.

Thank you all in advance, Best regards