Grouplist showItem bug

If in the Grouplist I first execute “showItem(1)” and then “clearAll()” - I get an error.
Error appears on touchdevices only
https://snippet.webix.com/9050gsb9

Hello @lBeJIuk, thank you for the bug report! I can confirm the issue, looks like a regression, as this example seems to work fine on version 6.4. We will look into the problem and try to provide the fix in a timely manner.