I should elaborate on item #3 in the original post. I've determined that only Fletchers, Shepards, Fishers, and Farmers will harvest crops. I'm fairly-confident that black/white apron villagers used to be included in the list of villagers that could farm. I'm unsure if the change was intentional or not, but would belong to a different bug report and is not in scope for this report. I'll do some more testing and create another report. It would probably break people's farms who upgrade, though, I think the way it works now makes more sense than the way it previously did.
Christopher Mauer
MC-136424
I should elaborate on item #3 in the original post. I've determined that only Fletchers, Shepards, Fishers, and Farmers will harvest crops. I'm fairly-confident that black/white apron villagers used to be included in the list of villagers that could farm. I'm unsure if the change was intentional or not, but would belong to a different bug report and is not in scope for this report. I'll do some more testing and create another report. It would probably break people's farms who upgrade, though, I think the way it works now makes more sense than the way it previously did.