Ah makes sense! Thanks for explantion I've tried to get my NPC to water the new beta fields by adding
TREE=SF Marsh Field|1|
TREE=SF Herb Garden|1|
TREE=SF Physic Garden|1|
TREE=SF Flower Planter|1|
...and it sees them and visits them, and says, "This needs water" followed by saying >>water, but the bucket doesn't tip and the field doesn't get watered. The NPC thinks it worked and goes to the well for another bucket and soon has a bunch of buckets following him around lol. Watering manually myself works as does auto-water taking from the Tower.