Locked villagers still change trades.

Please provide steps to reproduce the issue.

I will give the exact details: it happened on an Aternos server, so limited ram, in a mountains biome. 

step one: breed a villager from a breeder
step two: make it a librarian
step three: trade with the villager
step four: wait

I have no idea how I would specify it otherwise, I'm not even sure it is a bug, it just happened and no player was involved.

ps. another librarian also randomly disappeared along with its workstation

Provide a video?

Is it possible that the villager died and another villager took the workstation?

i don't have any footage from before the incident. and no, the villager was standing in the same spot where it cannot get out, and the trades had changed, even tho we already traded with it. it also happened that we found a good trade, and while we were getting the resources to trade with it to lock the trade, it changed without the workstation being removed and replaced.

I am unable to reproduce this issue in 1.17.1.

Please check if this is still an issue in 1.17.1 or later.

it has not been an issue since the posting of this thread. I hope it doesn't happen again.

Ive also had this issue in the past, will post some screenshots if it happens again