Villagers run into their houses - it's daytime

I was to try out the new snapshot. I flew over a world and visited a village. It was daytime, so the villagers went in peace in their village, I thought.
But the villagers run into one house. If I destoy the door, they run into the next.

Steps to Reproduce:
1. Start a new Map in Super-Flat
2. Search a village
3. Watch the villagers

What I expected to happen was:
The villagers do their normal routine in day.

What actually happened was:
They run very fast in one house (nearly all) until I destoyed the door. Then they run into the next. If all doors in reach destroed, they will be normal.