If a villager is traded with it will not lock its profession. If it’s profession changes then it’s new profession will be it’s locked profession. Example: I traded rotten flesh with a Cleric. The villager then switched to a cartographer. The cartographer is it’s new locked profession even though I traded with it when it was a cleric
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Thank you for your report!
We're actually already tracking this issue at MCPE-62080, so I will resolve and link this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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