Describe the bug

When filtering the DropDownList data, if both the value and the data-item-key properties are defined for the component, an error appears in the browser's console. Once the error appears, the popup of the component cannot be closed.

To Reproduce

1. Open this StackBlitz example
2. In the DropDownList, search/filter for something that doesn't exist. The point here is to get the 'NO DATA FOUND' template displayed.
3. Once that 'NO DATA FOUND' is displayed then delete the searched text

Expected behavior
The DropDownList should continue to work with no issues no matter the combination of properties configured for it.

Screenshots