I am actually hoping this bug is never fixed. But it is a problem.
When building a field essential 50% of it is unusable, because of the furrows. So a field 10x10 blocks only produces 5 rows of food. and 10x11 produces 6 rows of food.
In order to get around this you can exploit the bug of creating a field that is only 1 block wide. By making 10 1x10 fields. You can produce 10 rows of food, seen in the picture below.
This is similar to the discussion from Fields, Furrows and Farming. Actually discusses the problem of no negative repercussions of just making 1x10 fields. This may go in to game balance category if one appears ever.