Bug report

A Tooltip that fetches its content using AJAX request doesn't render a loading icon while waiting for the response.

Reproduction of the problem

1. Open this Dojo example - https://dojo.telerik.com/@martin.tabakov@progress.com/onUlEMiT/5
2. Hover the images.

Current behavior

Issue 1. No loading icon is rendered.
Issue 2. The Tooltip doesn't render until the response from the server arrives.

Expected/desired behavior

The Tooltip should render immediately with a loading icon until the response from the server arrives.

Environment

• Kendo UI version: 2022.1.301
• Browser: [all]