@javiereguiluz it happens because of this linehttps://github.com/symfony/symfony/blob/master/src/Symfony/Component/HttpKernel/EventListener/ProfilerListener.php#L81.

But the scope ofRequestDataCollector::collect() does not allow to know it the request is the sub request.
So I had to register theRequestDataCollector onKernelEvents::RESPONSE to get it from the event.

I also refactored a bit since$session was already defined inRequestDataCollector::collect().

Please tell me if the fix works for you too, and thanks again for reporting it :)

I reverted the redirect controller thing as I got the wrong result while testing it withsymfony-demo.
Also I've pusheddf19c14 to store the redirected flag in the request attributes instead of the session and used the returned value ofSession::remove. If you agree with this commit I'll squash it.

Thanks.

ping@javiereguiluz

Thank you@HeahDude.