MultiColumnComboBox select event is triggered when the dataSource has items with empty text.

[motkov01500]

Bug report:

MultiColumnComboBox select event is triggered when the dataSource has items with empty text

Reproduce problem:

Dojo

The steps to reproduce this problem:

1. click the dropdown to show options

2. Click anywhere on the document(You will see the alert message, it prompts for trigger event).

Current behavior:

Trigger event anywhere you click on a document.

Expected behavior:

Trigger event only when you click the values in the MultiColumnComboBox component.

Environment:

Kendo UI version: 2022.2.621
jQuery version: 1.12.4
Browser: all