Combo-box item hard to select when is whitespace.

Combo-box with DropDownList style will have a very thin line to select an item when the text value is whitespace (” “).  Found similar issue in forum [logged as WJ-7615, fixed in build 1.2.63.] where this was fixed for a string.Empty text value.  I can use this alternative but reporting this scenario.

Version: 1.4.41.0