SelectBoxEditor with less than 5 Values reset Value not possible


on neos 4.0.6 / neos-ui v1.0.14

If I have less than 5 Values in the SelectBoxEditor and the minimumResultsForSearch is not set there is no search sign (this is OK because of minimumResultsForSearch default is 5), but in this situation the reset button in the SelectBoxEditor is not working.
After some investigation I figured out if I set minimumResultsForSearch to 1 then the reset button is working properly even with less then 5 Values.

Is this wanted behavior?