No seeds drop from Large Ferns

Summary
In Java Edition 1.15, the large ferns were made to have a chance to drop seeds when broken. However, on Bedrock Edition, it doesn't.

Step to Reproduce
Break a lot of large ferns (preferably using a fortune 3 hoe)

Expected Results
Some of the large ferns drop seeds.

Observed Results
None of it drop seeds.

Original Description
No seeds drop from Large Ferns