Nether brick fence doesn't stick with other fences in creative inventory

Put the summary of the bug you're having here

What I expected to happen was...:
i was expecting to see the nether brick fence stick where other fences are as should be.

What actually happened was...:
But the nether brick sticks along with the enchantment table and the lillypad for no reason.

Steps to Reproduce:
1. Open a new world in creative mode
2. Open your creative inventory
3. Check the decoration blocks tab
4. Locate all fences, including the nether brick ones