bug#37578: 26.3; image-mode does not display the bottom edge of a tall image

[Alan Third]

On Wed, Oct 02, 2019 at 06:00:38PM +0900, ynyaaa@gmail.com wrote:
> 
> When viewing a tall image with image-mode, 
> typing M-> shows bottom side of the image.
> But the lowest edge is not displayed.
> 
> Evaluate the form below and type M->,
> the bottom curve (semicircle) is partially hidden.
> 
> (let ((svg-data "\
> <svg width=\"100\" height=\"1500\"
>      xmlns=\"http://www.w3.org/2000/svg\";>
>   <rect fill=\"blue\" rx=\"50\" ry=\"50\" width=\"100\" height=\"1500\"/>
> </svg>
> "))
>   (switch-to-buffer (generate-new-buffer "tmp"))
>   (insert svg-data)
>   (image-mode))

Confirmed in master. Oddly I can scroll to the bottom of the image
using the mousewheel, but not with the keyboard.

-- 
Alan Third