Error when closing fullscreen mode

Webix JS
1

To reproduce the error:

  1. Open a fullscreen;
  2. change focus (shift+tab);
  3. press ESC;
  4. Try to close the window in fullscreen.

The snippet partially contains parts of the answers from > https://forum.webix.com/discussion/36290/window-hotkeys

https://snippet.webix.com/1vssg3r6