Villagers wont share bread unless they have an excess of 24, used to be 6

So afther this bug and its fix MC-156306 villagers wont share bread unless they have more than 24 in their inventory. They used to share half when they had 6 bread or more.
This makes villager wheat farms rather inefficient in regards to villager breeding since each harvested wheat only produce one wheat and the villager needs 3 wheat to craft a bread and wont share enough bread with another villager for breeding until it has crafted a total of 27 bread which again requires it to harvest 81 wheat.