Villager are not related to Seed

When we create a new world if you talk to a pnj he will sell you something.

If you recreate the same world with the same seed he will sell you something else.

This is again the persistent seed world i think?

Try this seed to recreate the problem : -1635332903

you spawn directly into a village. Talk to the forgeron each time you recreate the seed he will sel you something new.