Villager don't return to Unemployed one when it's on minecart which is far away

Villager doesn't lose its job-Butcher when it's on minecart which is far even we destroy its job block or become zombie villager.

We didn't suggest any trade on it or placed other smokers.

It finally loses its job when it moves to the Nether or cured of the zombie virus.

 

It appears at job sites such as lectern.

*2020-12-05_20.30.40.png

Attract villager with job site and destroyed the job site

* 2020-12-05_20.31.21.png

: But villager didn't lose its job