Describe the bug
While the loading icon is visible in the DropDownList when fetching data, the widget's height is changed.

To reproduce

1. Open this Dojo example - https://dojo.telerik.com/AFuQItIv/4
2. Select an item in the first DropDownList

You can compare the height of the two dropdownlists

Expected behavior
The height of the DropDownList shouldn't change when the loading icon is visible.

• Kendo UI for jQuery

Affected browsers (please remove the unneeded items)

• All