Detach Event in spesific ID of tab view

Webix JS
#1

Hello, how i can detach event onAfterTabClick for specified ID of tab view after i clicked view?
My Case , each tabview view will call some request on server side. But in next click tab with same ID view, i want it is not call request again.

https://snippet.webix.com/ocsrc43i

Thank You.

#2

try to use onBeforeTabClick event instead and check current tab id

          onBeforeTabClick:function(id,ev){
            if(id != this.getValue()){
              // doWork();
              webix.message(id);                
            }
          }