Cauldrons filled with water, lava or powder snow cannot be used as a workstation for villagers

The bug

Because filled cauldrons have been seperated into different blocks, water, lava and powder snow cauldrons don’t work as a workstation to get leatherworker villagers anymore.

How to reproduce:

1. Place a cauldron
2. Spawn a villager
3. The villager will link to it
4. Put water or lava in it
   The villager will unlink from the cauldron.