Interesting.. Mine is an AMD E-450 APU with Radeon(tm) HD Graphics, running Linux Mint 18.2 x64, OpenGL 3.0.
Additionally, I experienced this with a much earlier version, 0.4.14-dev, before any fog-related changes, as you can see in the following images:
I'll see if I can try latest git on that computer.
does anyone know a way to fix this bug? i often play at tiny view range (which is ridiculous, my graphic card is a monster, but i love fog) and trust me, it looks... Disgusting! (especially with stairs and grass)