So I got Junior Artist and Writing Desk in play. I use Day Lab (get 2 food) and decide to move my meeple to the right lessons action space. As expected I get asked if I want to use the writing desk to play a 2nd occ for 2 food. I agree play an occ, but here my turn ends and I am not allowed to play my regular occ.
Rudi1976 places a person on card Day Laborer
Rudi1976 gains 2
Rudi1976 pays 1 for Junior Artist
Rudi1976 places a person on card Lessons
Rudi1976 buys House Artist (occupation)
Rudi1976 pays 2 for Writing Desk
Now one could argue that I didnt initially used the lessons action space, but Junior Artist text says:
Each time after you use the Day Laborer action space, you can pay 1 food to use an unoccupied Traveling Players or Lessons action space with the same person.
https://boardgamearena.com/1/agricola?table=662917952
Rudi1976 places a person on card Day Laborer
Rudi1976 gains 2
Rudi1976 pays 1 for Junior Artist
Rudi1976 places a person on card Lessons
Rudi1976 buys House Artist (occupation)
Rudi1976 pays 2 for Writing Desk
Now one could argue that I didnt initially used the lessons action space, but Junior Artist text says:
Each time after you use the Day Laborer action space, you can pay 1 food to use an unoccupied Traveling Players or Lessons action space with the same person.
https://boardgamearena.com/1/agricola?table=662917952