Berry bush sound doesn't play when at the edge of the block

When you walk on the edge of a sweet berry bush, you get hurt, and it makes a hurt sound not a berry bush hurt sound.

Steps to Reproduce from the comment section:

1. Place a floating grass block
2. Place a sweet berry bush on top
3. Place an opened trapdoor next to the grass block
4. Sneak
5. Walk slowly
   On the very edge, it sometimes plays the normal damage sound.