As was already pointed out, this was a resolution to a fix in the fields. Also, the issue of not being able to plow on bare dirt has been reported and resolved already. Thread closed.
I think the devs would apologize for doing this, but it's been known as a bug for quite some time and many of us have been warning players about the eventual "fix" in a variety of places. Even jorb himself said that this would be done when it came time. Just be glad that we have an open policy on bug exploiting here during the beta period. I can think of a few game devs that would have indefinitely suspended an account for abusing known issues the devs haven't had time to fix (even during beta periods).