Azalea leaves and flowering azalea leaves occasionally drop themselves instead of azalea

Summary:
When azalea leaves and flowering azalea leaves are broken without Silk Touch, they occasionally drop themselves instead of azalea and flowering azalea.

Steps to Reproduce:

1. Place down a long line of azalea leaves

2. Break the leaves with your hands

Observed Results:
The azalea leaves occasionally drop themselves.

Expected Results:
Azalea should occasionally drop.

Video: