It's been and gone a few times over the years on that route. At times immigration but no baggage claim, at times transit lounge (actually I'm not sure I ever did go through when that was in force, I think it came and went in-between trips for me), at times full re-check-in... anyway, I think the setup was different every time. And every time they found a way to make it a PITA. I eventually got fed up with it, and don't travel that way any more.

I prefer via Dubai, Hong Kong, or Shanghai. Border control officers there, while still clearly doing their job meticulously, manage to be polite as well.