The nether reactor shape when glowing obsidian.

When I was using a nether reactor, usually(0.10.5 and below) when you activate a reactor, the reactor would be a 3×3×3 of glowing obsidian but now in 0.11.0 the glowing obsidian just changes the blocks in the reactor. When it changes to obsidian though in 0.11.0 it is 3×3×3 of normal obsidian. It is abnormal to this version.

Note 3