### Bug report

When setting the NoDataTemplate() option to an empty string, the option is not serialized.

### Reproduction of the problem

1. Define an AutoComplete with NoDataTemplate("")

2. Search for a non-existing option and notice how the popup opens and displays the default "No data found" message. When initializing the AutoComplete with jQuery and the "noDataTemplate" is set to "", the popup does not open.

A REPL sample for reproduction: https://netcorerepl.telerik.com/cfkPEClS50FUVU5z00

### Expected/desired behavior

When the NoDataTemplate("") is set and there are no results, the popup must not open. The NoDataTemplate option must work equally when using either the AutoComplete HtmlHelper or Kendo UI for jQuery AutoComplete.

### Environment

* **Telerik UI for ASP.NET MVC version: 2024.4.1112
* **Browser: [all]

Bug report

Reproducible with suggest: true and serverFiltering: true
Regression introduced in 2019.3.1023.

Reproduction of the problem

Dojo example.

1. Focus the input area.
2. Type in "che".
3. Click the clear button.

Current behavior

The first item is selected.

Expected/desired behavior

The input is cleared.

Environment

• Kendo UI version: 2019.3.1023
• jQuery version: x.y
• Browser: [all]