'm new to use Active Choice plugin When i follow the example，I found when i press backspace。The single select input will become the first element of array。not the default value i set。also the value with suffix 'disabled' option can be selected

I think this is not as expected，I suggest that filtering should only be responsible for filtering the options in the drop-down box. The input box always displays the set default value or the first element of the array and let the user choose which one they want. or maybe i did something wrong？please teach me what should i do，thanks