Chorus plants don't drop themselves when mined with silk touch

The Bug:

Chorus plants don't drop themselves when mined with silk touch.

Steps to Reproduce:

1. Place down some end stone and a chorus plant on top of it.
2. Give yourself an axe enchanted with silk touch by using the command provided below.

   /give @s minecraft:diamond_axe[minecraft:enchantments={levels:{"minecraft:silk_touch":1}}]

3. Mine the chorus plant using the axe enchanted with silk touch.

Observed Behavior:

Chorus plants don't drop themselves.

Expected Behavior:

Chorus plants would drop themselves.