Prevent text focus when _onFocus event is fired.

[kevinleto-informaticon]

https://github.com/jshjohnson/Choices/blob/0519b993979a8d5ff4d3870df8208567d67b6226/assets/scripts/src/choices.js#L1999-L2030

Is there a way to prevent the input text focus when the user clicks on the select item?
I'm trying to do that but without success.
Thanks in advance.