Undefined route error in ember js for transition to same route

In EmberJs am in a route say xyz.abc(#/xyz/abc). There is a tab in this page which points to the same route i.e.

Tab Name

Clicking on this link I get the below error:

**

There is no route named undefined at Object.handlersFor

**

Why an error for that? This happens when we do transitionTo or replaceWith to the current-route, this is needed while doing this.refresh() in application.