How to save variables name when using batch: true?

[kemper0110]

I have problem with variables renaming, when requests are merged/batched in mergeRequests.ts.

This exact query works well:

query g($id: String) {
  searchAccount (cond: "root.$id == ${id}") {
    elems @strExpr(string: $id) {
      id
      name
    }
  }
}

Pay attention to cond: "root.$id == ${id}". There is interpolation of $id variable to string expression processed by graphql endpoint implementation (not on client). @strExpr directive used to suppress graphql warning.

I have problem with this query:

query g($id: String) {
  searchAccount (cond: "root.$id == ${id}") {
    elems @strExpr(string: $id) {
      id
      name
    }
  }
  s2: searchAccount (cond: "root.$id == ${id}") {
    elems @strExpr(string: $id) {
      id
      name
    }
  }
}

There are two root fields are using variable interpolation.
Batching Executor generates this query:

query g($_0_id: String, $_1_id: String) {
  _0_searchAccount: searchAccount(cond: "root.$id == ${id}") {
    elems @strExpr(string: $_0_id) {
      id
      name
      __typename
    }
  }
  _1_searchAccount: searchAccount(cond: "root.$id == ${id}") {
    elems @strExpr(string: $_1_id) {
      id
      name
      __typename
    }
  }
}

For this query my graphql endpoint cries for null $id value because they have been renamed to $_0_id and $_1_id.

How can I fix this situtation preferable without updating graphql endpoint implementation and why this renaming is produced?