Duplicated read request when you blur and open the MultiSelect

[martintabakov]

Bug report

If you filter the MultiSelect and then blur it, a read request occurs that retrieves all the data. Then, if you open the MultiSelect, another read request triggers with the same data as response

Reproduction of the problem

1. Open the Server Filtering Demo - https://demos.telerik.com/kendo-ui/multiselect/serverfiltering
2. Open the DevTools network tab and type some text to filter the data, e.g. "Cha"
3. Select an item from the filtered data and blur the input - a read request occurs that returns the entire data.
4. Open the MultiSelect again - the same read request with the same data occurs.

Current behavior

Duplicated read request occurs when you blur and reopen the MultiSelect

Expected/desired behavior

No duplicated read requests should occur.

Environment

• Kendo UI version: 2022.3.1109
• Browser: [all]

[martintabakov]

Duplicated #6361