Asymmetrical walls in taiga_medium_house_4

Related to MC-170242 (parity issue)

There are two spruce logs that are incorrectly rotated in taiga_medium_house_4.

How to Reproduce
1. Create a new world with seed 884838.
2. Go to coords 109 72 83.

Observed Result
There are two spruce log blocks that are incorrectly rotated.

Expected Result
The blocks should be correctly rotated.