Aloha fellow RS Travelers and thanks for all your helpful information. I did a search for this question, but didn't find any recent relevant information.
On TripAdvisor someone posted: "Go next door to the Conciergerie and buy a “combo ticket” for both attractions. Then you can go back to the Chapelle and enter straight away (or with whatever time slot is being allowed to go in). It’s a massive loop hole and worked like a charm for me. The Conciergerie is also a nice attraction and worth seeing as well so be sure to see both - especially if you paid for it!"
Has anyone done this recently and can verify?
merci beaucoup