`ActionController::Base#render :nothing => true` still whine

In FooController, I put method #bar whose only purpose is to run some
logic in the background and return a status 204 [1].

So in order to return only the 204 status code, I put at the end of
#bar:

render :nothing => true, :status => 204

But then when surfing to /foo/bar, I get an error about “missing
template bar.rhtml”. Is this a bug?

(The solution eventually was render :text => '', but it really seems
like a hack and that render => :nothing should have been the valid
solution)

-Chris

[1] HTTP/1.1: Status Code Definitions - “204 No
Content: The server has fulfilled the request but does not need to
return an entity-body”