Dropdown with selected option wrapped

About dropdowns with long text options:

I know when using optionHeight for dropdowns, I can make sure the text of the options is properly wrapped and readable. However, when I choose an option, the selected option is not wrapped in the dropdown box.
Setting the height for the dropdown the same as optionHeight does not help.
I tried several CSS options, but nothing helped. Does anybody know?
In my opinion this should be added to the documentation, since it is related to optionHeight.