I was walking in the nether searching for a Nether Fortress and a ghast started shooting at me. Surprisingly, he didn't shoot with fireballs but wit end portal frames? I know there is another bug reported about this, but i think this is about the new resource pack system.
Sorry for bad english.
Environment
I don't know wat 'Environment' means, Google Translate says 'Terrain', so thats 'Nether'
For future reference, "Environment" on this website means what Operating System you are using (Windows, Mac, Linux), and your Java Version.