Old Resource pack bug

The resource pack that turns all textures in the old version like netherrack

What I expected to happen was...:
I wanted to expreience the old times in the nether

What actually happened was...:
the gold nugget ore in the nether has the new texture in the resource pack "Programmer Art"

Steps to Reproduce:
1. Start a world and enable the "Programmer Art" resource pack that turns all blocks in their old form.
2. get to the nether
3. find some gold ore (gold nugget ore)