I have a listener that lock the transition. Then, I need to give this
lock to my consumer. ATM, there is no easy way to pass a new resource
from a listener to the caller. I could add a newtmpLock property on my
subject (this is what I did temporary), but I'm not confortable with
this hack.

By adding the final context (it could be updated, that the point of
listener) to the marking, I could easily get data back.

Finally, the PHP doc of WorkflowInterface::apply() tells us:

 * @return Marking Thenew Marking

So I think it's legit to add also the new context