Mangrove leaves broken with Silk Touch do not stack with those broken without Silk Touch

Summary:
Mangrove leaves broken with Silk Touch do not stack with those broken without Silk Touch.

Steps to Reproduce:

1. Obtain a Silk Touch tool and mangrove leaves
2. Place the mangrove leaves
3. Switch to Survival mode
4. Break the mangrove leaves with the Silk Touch tool
5. Pick up the mangrove leaves

Observed Results:
The mangrove leaves do not stack.

Expected Results:
The mangrove leaves should stack.

Video:
Minecraft 2022-04-07 17-44-54.mp4