I consider applying for a working and holiday visa for France.
If I understand it correctly, even though it is only in France where I can stay validly, no one checks my visa and passport even while I'm in other Schengen countries since there is no border check. So it happens when I get out of the Schengen area that I finally get the stamp on my passport.
However in this case, does my working and holiday visa expire once I exit out of the Schengen area, even though there remains a few months? Or can I enter France again until the initial expiration date of the visa?
Also if I can enter France again, is it possible to enter it from another Schengen country via a transfer flight (e.g. a flight from Beijing to Paris with Frankfurt as a transfer, operated by Luthahansa)?