Success handler not called when redirecting with Ajax

We put an ajax indicator on our page. This adds the wicket.show('indicator') method before the call to wicketAjaxGet.
To the wicketAjaxGet a success and failure handler are attached that call the wicket.hide methods.

We have a button that redirects to a file, so the page doesn't change. The browser just pops up a file download dialog. The thing is that the ajax indicator isn't removed.

There are no calls to successHandler or failureHandler for redirects only for loadedCalls.

I attached a patch that adds a call to the successHandler after the this.done() when a redirect is asked for. In most of the cases the successHandler is an empty function.