If the player breaks a bee hive or bee nest with a bee inside, without the silk touch enchantment, and the front face of the bee hive/nest has a block, the bees won't get out of the bee hive/nest. The bee hive/nest dropped won't contain the bees either. In result, the bees will have dissapeared.

Steps to reproduce:

1. Place a bee hive or bee nest and get a bee inside it.
2. Place a block in front of the bee hive or bee nest, just next to its front face.
3. Break the bee hive or bee nest without the silk touch enchantment.

Result: No bees are spawned/get out of the bee hive or bee nest

Expected result: Bees get out of the bee hive or bee nest