Those are some eagle eyes you have there, Mark. Good work. I was so surprised at the ‘accuracy’ at the headstock end, that I failed to make a full perimeter search. Good to know that computer generated (no intelligence evident just yet) images continue to be inaccurate in the silliest of ways.
Now that you've pointed it out, this seems to be the case, good eagle eye there. The line is too straight, not really a contour. I reckon our bass player brains take a quick look and fill in the details to fit what we already know.