Steps to Reproduce:

1. Create a world using the "Epic Jungle" seed template
2. Travel to the jungle and observe the bush features
   The bushes are made of oak leaves, a change introduced in 1.21.60.27 Preview
3. Leave the world
4. Follow the same steps, this time enabling the "Drop 1 2025" experiment
   The bushes are made of jungle leaves

Observed Results:
Enabling the Drop 1 2025 experiment reverts the jungle bush feature to its old configuration.

Expected Results:
The experiment has no effect on the jungle bush.

Screenshots/Videos attached: Yes

Notes: Also affects the /place command in worlds that have it enabled.