At snowy_library_1, the snow block is placed next to the windows

Related to MC-170470 (parity issue)

The snow block is placed right next to the windows, which creates an ugly connection together aesthetically.

How to Reproduce
1. Create a new world with seed 344111.
2. Go to the coords in the screenshots (-409 69 -265).

Observed Result
The snow block is generated on the windows.

Expected Result
The snow block should be generated away from the windows, or as in Java.