calling set on destroyed object

[knownasilya]

"calling set on destroyed object: <map@component:basic-dropdown/content::ember1608>.animationClass = ember-basic-dropdown--transitioned-in"

This seems to sneak in ever so often in my app. This is the first time I actually caught the error.

[cibernox]

If you have an idea of how it can happen submit a fix. If you can figure out a way to kill the timer that causes this that preferable to checking if the component has been destroyed