It's not the same case as MC-45795 and / or MC-45478. I have a backup from January, December, November, October and September. In all cases, farmers do not care about crop in any direction in 14w05b (they don't brake crops, don't replant them, don't pick up seeds/wheat/potatoes/.. from the ground).
nope, villagers work is affected by /gamerule mobGriefing false ... I had set that because of a creeper's devastation :/