GRIM: Manny's neck does not bend like in original

[sev-]

First, this is just a "I notice a difference" bug, it does not cause any obviously-wrong image as far as I know.

I noticed this in a few sets, but not in a way I could screenshot: turn left and right while manny looks at something, get a feeling for how the 3 angles change, notice that it's not the same as with original - ex: set "mo", whan manny looks at the message tube.

I finally found that it is clearly visible in set "co":

Manny is right against the bottommost wall, so the neck is as visible as possible.