Form clear function for custom component

Hi, as we create a custom component with protoUI, the other function seems fine. But, we try to use form.clear(), the custom component value is not clear. What should we do?

https://webix.com/snippet/9dc463bd

because you block clearing in $setValue
https://webix.com/snippet/87820356

wow… amazing… means the form clear actually call the $setValue. Thanks.