Breaking the new Cherry Blossom Petals on the ground.

I found the new cherry blossom forest and I broke some petals on a grass block and I noticed that every time I broke the petals the grass block would get the breaking block texture but just stuck on that phase. The more I placed and broke the petals on that grass block the more the breaking texture would become and soon the block broke very glitchy like. 

What I expected to happen was...:
The petals to just break.

What actually happened was...:
The petals would break but so would the block under them. 

Steps to Reproduce:
1. Break the cherry blossoms petals.
2. Hold down LMB for like a frame longer after breaking the petals. 
3. Notice what happened to the block under the petals.