I am breeding villagers and locking them into professions for a Villager Trading Hall. The Unemployed Villagers will select a workstation as normal, but when that workstation is broken for transport of the Villager to the Trading Hall, they will not relink to the workstation when it is replaced. For an example, I have a total of 5 Cartographers. I transported them to my Trading Hall and couldn't get any of them to link to a Cartography Table. I placed down 8 total Cartography Tables and not one table emitted Green Particles. 

How to Replicate:

1. Find or Breed Villagers- Obtain an Unemployed, Non-Nitwit Villager
2. Pick a Workstation/Profession for your Unemployed Villager (e.g. Composter -> Farmer)
3. Make one trade to lock in the Villager's Profession.
4. Break the Workstation that your newly Employed Villager just linked to in Step 2.
5. Transport Villager to designated Location.
6. Replace the Workstation.
7. The Profession Locked Villager will not relink to the Workstation.

Disclaimer: I was working on the Trading Hall and Villager Breeding all last week with no issues. And no issues this week until the 1.19 update came out.