Water Bottles are No Texture Blocks

Water Bottles would have the same texture as always. (Glass bottle with blue water inside.)
What actually happened was the bottle was not normal, but rather a Purple and Black block that was drinkable.

I'm not sure how to reproduce this bug, but I found it when I had a water bottle or some in a chest from 1.8.8 and when this server updated to 15w31c they were MissingTexture blocks.