Actually, the animation mistake is simply a VF-1A with two small lasers coming off of the side. The YV-1R as interpreted by Tommy Yune and HG is a derivitive because they have taken creative license and made their own version of that mistake.
The "mistake" VF-1A and the YF-1R are clearly different heads, albeit on the same theme.
I know. I'm simply pointing out that, regardless of its name, the monstruosity is still in SDF Macross.