Bee Nests/hives filled with bees don't stack

Steps to Reproduce:

1. Go to Creative. (optional)
2. Break a Bee Nest filled with Bees. If you are in Creative, just do it. If you're in Survival, do it with Silk Touch.
3. Break it once again with the steps above.

Observed Results:

Bee Nests appear as an individual item in your inventory.

Expected Results:

Bee Nests stack.