Playing the original SkyBlock 2.1:
Curing Zombie Villager (being fisher):
The villager, still being novice, is not becoming farmer or something else.
I placed and removed barrel, loom, compost, nothing happens.
He is sleeping in (my) bed and wandering, but not changing proffesion.
The world is attached.
I think this is Working as intended. Zombie villagers now retain their profession and trades when they are cured in 1.14. So a fisherman should still be a fisherman.