Massive Z-fighting on underwater ice block faces and on enchanted items

Z-fighting occurs on the sides of surface ice blocks in frozen water biomes. It only happens at a distance, and turning mipmaps off seems to reduce the effect, but it is still there.

 

There is also an issue with Z-fighting on enchanted item viewmodels and enchanted item entity models. It is more noticeable on some items (such as the fishing rod) than on other items.