Steps to reproduce:
Go to a village that has villagers
Go to the workstation of a particular villager (Like a farmer)
Break the workstation
Expected result:
Villager should lose its profession
Observed result:
The villager still keeps his profession
Therefore, the villager will keep his profession regardless if you traded with him or not.
Related issues
Comments

Thank you for your report!
We're tracking this issue in MCPE-49853, so this ticket is being resolved and linked as a duplicate.
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