Strange behavior : removeTrait and addTrait are abruptly behaving dynamically

[codingmachine16]

Hi @artf

 on an event I am adding traits for select box as 

e.addTrait(
{
label: "Categories",
name: "sourceCategoriesAttr",
id: "sourceCategoriesAttr",
type: "select",
options: [{name:"addidas", value:"addidas"},{name:"Nike","value:Nike"},{name:"Reboke",value: "Reboke"}],
changeProp: 1,
},

{ at: 3 }

);
and on another event removing Traits like below

e.removeTrait("sourceCategoriesAttr");

It is working fine upto here. But when add Traits again on the first event, it keep previous value selected. How to get rid of selected value.

Please help.

Regards

[artf]

Traits read the value from the component, so if you need to change that value, change it at the component level, eg. component.set('sourceCategoriesAttr', '')