-0 Corrodents Bug

In the regular corrodents box, the corrodents go 2, 1, 0, -0, 1,2, but when you look at the "looking at block" corrodents box, the corrdents go 2, 1, 0, 1, 2. What I'm saying is, the looking at corrdents box dosen't have -0, but the regular coordents do. In the picture I attached, you can see the regular coordnets say -0, but the looking at corrdents say -1.