the type QueryWithHelpers is not recursive

[shlomiassaf]

Currently, to chain queries we can use QueryWithHelpers which returns the query and additional helper functions that also add conditions and return the query.

  type QueryWithHelpers<ResultType, DocType extends Document, THelpers = {}> = Query<ResultType, DocType, THelpers> & THelpers;

This is good for a single chain and there it stops since QueryWithHelpers return Query :)

The old typings @types/mongoose used to have the main Query (called DocumentQuery there) which returned all results with the THelpers added and also exposed Query with an empty THelpers which had the same affect.

This should solve the issue