jQuery promise callbacks stop firing after a callback triggers an error

Question

Given 1-3 below:

1. var a = $.Deferred()
2. a.done(function(){throw Error()});
3. a.resolve() // Uncaught error

Now assume the call stack is cleared. Then I do the following:

4. a.done(function(){console.log('Done')})
5. a.fail(function(){console.log('Fail')})
6. a.then(function(){console.log('Then')})

And nothing happens. Why? Why does the uncaught error in (3) preclude futher callbacks from firing? Is this by design?