How to avoid exceution of operation advisor if defect created from workItem template?

I have added operation advisor in which I am checking the workitem has parent. I have requirement where , I want  to check like if defect is created from workitem template(Workitems -> New -> WorkItem from Template), then escape the code written in advisor and if the defect is created normally(WorkItem - > New -> Workitem) then execute the code.

 Is their any way to get check whether defect has created  normally or using work item template programmatically?