Version: 1.12.2-0.9.1-RELEASE

Expected behavior

The farmer actually sticking within the borders delimited by both fence and stone blocks

Actual behaviour

They do not. just till everything tillable within range of the scarecrow.

Steps to reproduce the problem

Build farmer, build field, place scarecrow. let them till the area and watch them over-till.

Edit:
Is this something the wiki fails to explain properly? it makes it sound like you can border fields like this with blocks to define a size.
https://wiki.minecolonies.com/source/buildings/farm

I found that as well, I started debugging it already and found one bug in the code, I'll check if this is what causing this

SHould be fixed