Growing trees other than spruce on moss block will turn the moss block to dirt

Summary
When you grow the sapling on a moss block, it will turn to dirt instead of staying as it is. This isn't in parity with Java, where the Moss Block doesn't get turned to dirt.

Step to Reproduce
1. Place a sapling (except 2x2 spruce saplings) on a moss block.
2. Bone meal it.
---> The moss block turns to dirt.