How to render error from a failed request.js turbo_stream request?

I use GitHub - rails/request.js from stimulus controller to do a request that returning turbo_stream response

import { Controller } from "@hotwired/stimulus"
import onScan from "onscan.js"
import { patch } from "@rails/request.js";
// Connects to data-controller="checkout"
export default class extends Controller {
  static values = {
    sellingId: Number
  }
  connect() {
    let sellingId = this.sellingIdValue
    onScan.attachTo(document, {
      suffixKeyCodes: [13], // enter-key expected at the end of a scan
      onScan: function (sCode, _) { // Alternative to document.addEventListener('scan')
        patch(`/sellings/${sellingId}/add-item`, {
          body: { "selling": { "inventory_id": sCode } },
          contentType: "application/json",
          responseKind: "turbo-stream"
        })
      },
    });

    onScan.setOptions(document, {
      minLength: 1 // change the quantity to 5 for every scan
    });

  }
}

my controller are like this

  def add_item
    idnya = params.require(:selling).permit(:inventory_id)[:inventory_id]

    if idnya && @selling.update_entry(idnya)
      respond_to do |format|
        format.html { redirect_to selling_path(@selling), notice: "Item was successfully Added." }
        format.turbo_stream { flash.now[:notice] = "Item ditambahkan." }
      end
    else
      render :show, status: :unprocessable_entity, notice: "Item not found"
    end
  end

the problem is I got the correct response from console log, its 422 and the response is the show page rendered with the notice (the html page that I want)

problem is my view in the browser window is not changed at all