Add and delete records with ember.js

I am using emberjs for mvc in client side, I'm facing a problem when I would like to delete a record et create another with the same Id of the deleted one.

It shows me this error

Uncaught Error: Assertion Failed: Error: Assertion Failed: The id 2 has already been used with another record of type Client.Componant.

I tried destroyRecord() and store.unloadRecord(...) but it seems like the store still have the record which supposed deleted in his cache or some thing like that.

Any HELP please !! Thanks