[2021] Adding farm fields with SHIFT key may cause wrong module counters.

Yesterday during play I've noticed that game can count less fields then you really have.
I created a farm leaving space for future tractors. When time came I've realized, that I need 2 additional space to place it, so I SHIFT created 2 more farm fields and then deleted those unneeded. Surprisingly game was showing 142/144 fields.
Copying this layout to create another farm gave me correct 144/144 fields so number of modules is correct. Probably game is not properly counting those "extra" fields.

How to reproduce:

1. Create a farm (any) and all its fields
2. Press SHIFT and add 2 more fields (game is allowing to do so for visual reasons and probably to reserve more space for future barns)
3. Delete 2 fields near the farm (not those you just created)
4. "Success!" - game is showing, that you lack 2 fields (even tho there are exact number)
5. Copy full layout (farm + fields) and build it elsewhere
6. "Success 2!" - new farm states that all needed fields are there.

It's not game braking, but it may confuse players who like to add more fields than it's needed and then reorganise something - during this process they may be confused why farm isn't working on the full potential.