This is still an issue in the 1.14.4 full release. I honestly feel it is worse since the full release as half my villagers in my iron farm will lose their beds during the night after a few day/night cycles. During my last play session villagers that I had replaced beds for forgot them again before I could finish replacing beds for others in the farm. It cripples all iron farms that I've built and tested.
This is still an issue in the 1.14.4 full release. I honestly feel it is worse since the full release as half my villagers in my iron farm will lose their beds during the night after a few day/night cycles. During my last play session villagers that I had replaced beds for forgot them again before I could finish replacing beds for others in the farm. It cripples all iron farms that I've built and tested.