Bug report

Reproducible with inline and classic Editor.

Reproduction of the problem

Dojo example.

1. Type in some text in the Editor.
2. Press Ctrl + A keys.
3. Press Backspace key.
4. Press Ctrl + Z keys.

Current behavior

Undo does not work the first time Ctrl + Z keys are pressed. It works, if you press them a second time.
If the keydown event handler is not attached, it works as expected.

Expected/desired behavior

Undo works on the first press of Ctrl + Z keys.

Environment

• Kendo UI version: 2020.3.1118
• jQuery version: x.y
• Browser: [all]