Bug report

Setting value(null) to the Switch removes the Off text.

Reproduction of the problem

1. Check the issue in this Dojo - https://dojo.telerik.com/ojABUhos.
2. You can also see how the bug affects this Form demo by clicking the clear button several times.

Current behavior

Setting the Switch's value to null removes the Off label text.

Expected/desired behavior

The Off label text should not be removed.

Environment

• Kendo UI version: 2020.3.1118
• Browser: [all]