The Silk Touch Enchantment Vs. The (Giant) Mushroom Blocks

During this new update of Minecraft I usually an one who uses the giant mushroom blocks as building blocks and one day as I was prepping for a build I noticed that when I went to harvest them from my Giant Mushroom farm and I grabbed my silk touch ax and went to collect all my mushroom blocks and noticed that they were all dropping as one block instead of several blocks.

What I expected to happen was...:
When you use silk touch on any applicable item such as swords,pick axes,axes,shovels,hoes, or shears on a Giant Mushroom (Red or Brown) instead of getting the orientation block you get several blocks that are based on orientation of each mushroom face.

What actually happened was...:
When you use silk touch on any applicable item such as swords,pick axes,axes,shovels,hoes, or shears on a Giant Mushroom (Red or Brown) instead of getting the orientation block you get the (Mushroom #0100)which is all the same block.

Steps to Reproduce:
1. Enchant silk touch on any applicable item such as swords,pick axes,axes,shovels,hoes, or shears
2. Place down a mycelium block (#0110)
3. Place and grow either a red mushroom (#0040) or brown mushroom (#0039)
4. Use bone meal (#0351/15) on it
5. Harvest with applicable items such as swords,pick axes,axes,shovels,hoes, or shears that has Silk Touch on it
6. Retrieve Mushroom Block (#0100)